Gross profit percentage definition
/What is the Gross Profit Percentage?
The gross margin percentage is the money earned from the sale of goods or services, expressed as a percentage. The percentage is closely monitored over time to see if a number of possible factors are impacting company profitability.
How to Calculate the Gross Profit Percentage
If a business typically sells goods, then the gross margin percentage is calculated as follows:
(Sales - (Factory overhead + direct materials + direct labor)) ÷ Sales
If a business typically sells services, then the gross margin percentage is calculated as:
(Sales - (wages of billable staff + related payroll costs of billable staff)) ÷ Sales
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Example of the Gross Profit Percentage
ABC International has sales of $1,000,000, direct material costs of $250,000, direct labor costs of $75,000, and $125,000 of factory overhead. This results in a gross margin percentage of 55%, which is calculated as:
($1,000,000 Sales - ($125,000 Overhead + $250,000 Direct materials + $75,000 Direct labor)) ÷ $1,000,000 Sales
How the Gross Profit Percentage Can Be Used
It is customary to closely track the gross profit percentage over time, since a decline in it can signal a number of problems, such as a decline in prices, a change in the mix of products and services sold, an increase in production costs, an increase in bad debts, an increase in charges for scrap and spoilage in the production process, or an increase in charges for obsolete inventory.
A significant decline in the percentage is a strong indicator that the market is becoming more competitive, and that management should therefore begin to pare back on its selling, general and administrative expenses in order to avoid losses. A decline can also indicate that a customer is becoming too powerful, and so is demanding steep price discounts.
Problems with the Gross Profit Percentage
The gross profit percentage can yield misleading results for a number of reasons, which are as follows:
Materials cost variability issues. The cost of direct materials can vary, depending upon the cost layering method used (such as FIFO, LIFO, or weighted average costing). This means that the underlying cost flow method can impact the results generated by this percentage.
Fixed nature of labor costs. The cost of direct labor does not really vary with sales volume, since the cost of staffing the product line will probably stay the same, even if production volumes vary. This can cause the gross profit percentage to vary somewhat from expectations, depending on the volume level.
Fixed nature of factory overhead costs. The cost of factory overhead is largely fixed within general ranges of production volume, so that the gross profit percentage does not change, even when you would expect it to.
Thus, some changes in the gross margin percentage may be caused by changes in the amount of fixed costs and the number of units produced, rather than any real costing issues that management can fix.
The Contribution Margin Percentage
A variation on the gross profit percentage is the contribution margin percentage, which eliminates all fixed costs from the gross profit percentage calculation. With just variable costs included in the calculation, the contribution margin percentage tends to be a better measure of performance.