In weighted average cost methodaverage cost of materials purchased is charged to job or process rather than the actual cost. In other words, it is assumed that where a material is purchased at different prices the cost of a unit of such material will be the average, of the cost of all units purchased during a particular period.

The weighted average method of material costing is used for costing materials requisition and charging cost of materials to production.

The balance on hand is also composed of units valued at the weighted average cost. In order to find the average price the total cost of all materials of a particular, class is divided by the number of units in hand.

It means that materials returned to sellers and to the store is recorded at present average, cost. Weighted average method of pricing out issues. Issued to production 2units. Issued out 20units to production.

Received back into stores 19 units out of 20 units issued on9th August. Issued to production 10 unit. Save my name, email, and website in this browser for the next time I comment.There are advantages and disadvantages of the weighted average cost of capital WACC which are discussed in details in the post coming ahead.

The perfect understanding of the concept of WACC is a must for all finance professionals. Corporations constantly keep track of the costs they incur. We all know that whenever costs are kept low, the profits jump and in turn, the value of your business increases indirectly. Similarly, like other costs, weighted average cost of capital as the name suggests is the cost which companies incur on their capital.

Capital can either be debt or equity. Hence, WACC is one of the parameters which companies look at to increase the value of the firm.

Lower the WACC, higher will be the value of the firm. You can compare the WACC of corporations having similar business risks. This will help you to know which corporation is using capital at the minimum costs.

Note — the business risk is a possibility that a company may generate less than the required profits. This risk may prevent you from achieving your company targets. A business risk may differ from industry to industry and is mostly the same among a particular industry. A company having lower WACC compared to other companies operating in the same industry is an advantageous situation.

It can create more value for its stakeholders. WACC is used by valuation team for calculating the value of the firm. Are you wondering how? Let us understand with an example.

### Evaluating New Projects with Weighted Average Cost of Capital (WACC)

Value of the firm is as follows —. As I have mentioned above in the 1st point that lower the WACC, higher would be the value of the firm. Weighted average cost of capital guides the corporate finance team to judge whether to accept or to reject a project. In this process, IRR Internal Rate of Return is compared with the cost of capital of the firm to decide whether to accept or reject a project.

If IRR is greater than the cost of capital, the project can be undertaken or else the project is rejected. For e. WACC is the minimum rate of return the corporation must generate to satisfy its shareholders and its creditors.

WACC, therefore, acts as a hurdle rate which the corporations have to cross to generate value to all shareholders and stakeholders.It can be easily calculated; and can be easily understood. It is the reason that it is the most used measure of central tendency. Fluctuations are minimum for this measure of central tendency when repeated samples are taken from one and the same population.

It can further be subjected to algebraic treatment unlike other measures i. A single item can bring big change in the result.

For example if there are three terms 4, 7, 10 ; X is 7 in this case. Its value will be effective only if the frequency is normally distributed. Otherwise in case skewness is more, the results become ineffective.

In case of open end class intervals we have to assume the limits of such intervals and a little variation in X can take place. Such is not the case with median and mode, and there is no use of the open end intervals in its calculations. Qualitative forms such as Cleverness, Riches etc. Sometimes it gives impossible or laughable conclusions, e. Article Shared by Pooja Mehta.

How to Calculate Weighted Arithmetic Mean?The weighted average cost AVCO method or standard cost method involves computing the weighted average cost of the inventory held after each inventory acquisition takes place.

Any inventory sold or used is then valued at this weighted average figure until another acquisition purchase takes place, when a new weighted average cost is computed. Don Barco has recently started a new business which deals in a single product. The first three months of his year of trading showed the following purchases and sales:.

Calculations should be taken to a maximum of two decimal places. Caveat Emptor buys and sells a single product from two years. For your convenience you may assume that all purchases took place at the first day of each month, whereas sales are made on the last day of the relevant month. Definition and Explanation: The weighted average cost AVCO method or standard cost method involves computing the weighted average cost of the inventory held after each inventory acquisition takes place.

Advantages: i AVCO gives most satisfactory results in periods of wide fluctuations in prices as variation in prices are minimized. Disadvantages: i Prices used to value inventories may bear no relationship to any price actually paid to suppliers. Solved Problems and Examples: Problem 1 : Don Barco has recently started a new business which deals in a single product.In any research, enormous data is collected and, to describe it meaningfully, one needs to summarise the same.

The bulkiness of the data can be reduced by organising it into a frequency table or histogram. These measures may also help in the comparison of data. The mean, median and mode are the three commonly used measures of central tendency. Mean is the most commonly used measure of central tendency. There are different types of mean, viz. If mentioned without an adjective as meanit generally refers to the arithmetic mean.

It is computed by adding all the values in the data set divided by the number of observations in it. If we have the raw data, mean is given by the formula. The research articles published in journals do not provide raw data and, in such a situation, the readers can compute the mean by calculating it from the frequency distribution if provided.

Where, f is the frequency and X is the midpoint of the class interval and n is the number of observations. Readers are cautioned that the mean calculated from the frequency distribution is not exactly the same as that calculated from the raw data. It approaches the mean calculated from the raw data as the number of intervals increase.

The mean uses every value in the data and hence is a good representative of the data. The irony in this is that most of the times this value never appears in the raw data. Repeated samples drawn from the same population tend to have similar means.

The mean is therefore the measure of central tendency that best resists the fluctuation between different samples. It is closely related to standard deviation, the most common measure of dispersion. Mean cannot be calculated for nominal or nonnominal ordinal data. Even though mean can be calculated for numerical ordinal data, many times it does not give a meaningful value, e. Weighted mean is calculated when certain values in a data set are more important than the others.

For example, When weighted mean is used to represent the average duration of stay by a patient in a hospital, the total number of cases presenting to each ward is taken as the weight. It is defined as the arithmetic mean of the values taken on a log scale. It is also expressed as the n th root of the product of an observation. GM is an appropriate measure when values change exponentially and in case of skewed distribution that can be made symmetrical by a log transformation.

GM is more commonly used in microbiological and serological research. One important disadvantage of GM is that it cannot be used if any of the values are zero or negative. Alternatively, the reciprocal of HM is the mean of reciprocals of individual observations. HM is appropriate in situations where the reciprocals of values are more useful.

HM is used when we want to determine the average sample size of a number of groups, each of which has a different sample size.Arithmetic average, or arithmetic meanor just meanis probably the simplest tool in statistics, designed to measure central tendency in a data set which can be a group of stocks or returns of a stock in particular years. Using arithmetic average has advantages and disadvantages, and in some cases you may find other measures like geometric average or median more suitable.

As the most basic measure in statistics, arithmetic average is very easy to calculate. For a small data set, you can calculate the arithmetic mean quickly in your head or on a piece of paper. Here you can see the basics of arithmetic average calculation. Because its calculation is straightforward and its meaning known to everybody, arithmetic average is also more comfortable to use as input to further analyses and calculations.

When you work in a team of more people, the others will much more likely be familiar with arithmetic average than geometric average or mode.

## Merits of mean and Demerits

Arithmetic average is extremely sensitive to extreme values. Imagine a data set of 4, 5, 6, 7, and 8, Therefore, arithmetic average is not the best measure to use with data sets containing a few extreme values or with more dispersed volatile data sets in general. Median can be a better alternative in such cases.

There was an example of this in one of the previous articles, when we were calculating average return of 10 stocks in one year. However, in finance you often work with percentage returns over a series of multiple time periods. The more volatile the returns are, the more significant this weakness of arithmetic average is. Here you can see the example and reason why arithmetic average fails when measuring average percentage returns over time. Arithmetic average treats all the individual observations equally.

In finance and investing, you often need to work with unequal weights. For example, you have a portfolio of stocks and it is highly unlikely that all stocks will have the same weight and therefore the same impact on the total performance of the portfolio. Calculating the average performance of the total portfolio or a basket of stocks is a typical case when arithmetic average is not suitable and it is better to use weighted average instead.

You can find more details and an example here: Why you need weighted average for calculating total portfolio return. Arithmetic average as a measure of central tendency is simple and easy to use. But in order to take advantage of it and prevent it from doing any harm to your analysis and decision making, you should be familiar with the situations when it fails and when other tools are more useful. You can easily calculate arithmetic average, median and other measures using the Descriptive Statistics Excel Calculator.

Have a question or feedback? Send me a message. It takes less than a minute. By remaining on this website or using its content, you confirm that you have read and agree with the Terms of Use Agreement just as if you have signed it. If you don't agree with any part of this Agreement, please leave the website now.Weighted average cost of capital is a weighted average of cost of equitydebt and preference shares and the weights are the percentage of capital sourced from each component respectively in market value terms.

The advantages of using such a WACC are its simplicity, easiness, and enabling prompt decision making. The disadvantages are its limited scope of application and its rigid assumptions coming in the way of evaluation of new projects. The WACC can very well work as a hurdle rate in evaluating the new projects provided the following two underlying assumptions are true for those new projects.

It means that if the company has ratio of debt to equity in their current balance sheetan inclusion of the new project will maintain the same. The risk associated with the new project will be like the existing projects. For example, a textile manufacturer expands and increases the no. Since the industry and business are same, there will be almost no change in the risk profile of the current business and the new expansion.

The biggest advantage of using WACC as a hurdle rate to evaluate the new projects is its simplicity. The calculation does not involve too much of complication. The manager just needs to apply weights of each source finances with its cost and aggregate the result. One single hurdle rate for all projects saves a lot of time of the managers in an evaluation of the new projects. If the projects are of same risk profile and there is no change in the proposed capital structurethe current WACC can be applied and effectively used.

For taking advantage, the right decisions have to be taken at the right time. Since the single rate is used for all new projects, the decisions can arrive at a faster pace and the new opportunity can be grabbed and taken benefit of. The disadvantages are stemmed mainly from the assumptions of the applicability of WACC. The practicability and limitations of the assumptions are discussed below. The remedy to overcome the problem is also specified.

It suggests the same capital structure for new projects. There are two possibilities for funding the project in this way. The remedy to this problem is that the target capital structure should be taken into consideration and not the existing.

The risk is a very wide term and is affected by a big list of factors. Under that situation, assuming no change in the risk profile of new projects would be very unrealistic. Let us assume two situations:.

The remedy to this problem is that the WACC should be adjusted to take effect of the change in risk. The WACC used for evaluation of new projects require consideration of present day cost of capital and knowing such costs is difficult.

**MERITS AND DEMERITS OF ARITHMETIC MEAN**

The WACC considers mainly equity, debt and preferred. The interest cost of debt keeps changing in the market depending on the economic changes.

The expected dividend of the preferred also keeps changing with the market sentiments and the most fluctuating is the expected cost of equity. While making WACC calculations, only equity, debt and preference shares are considered for the sake of simplicity assuming that they cover a major portion of the capital. Too much complexity is a probable reason for mistakes. On the similar grounds, the short-term borrowings and the cost of trade credit are also not taken into consideration.

Factors like such if introduced, will definitely change the WACC. We will not go into the magnitude of the difference these things will have on the calculations of the WACC but the impact is there. This does not prove the concept futile. It can be used under different circumstance by making some adjustments to it.

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