# How to Use Profit Margin Formula in Excel: A Step-by-Step Guide WPS Office Blog

The IRS allows several different methods (FIFO or LIFO, for example), depending on the type of inventory. The IRS has detailed rules for which identification method you can use and when you can make changes to your inventory cost method. The Internal Revenue Service (IRS) requires businesses with inventory to account for it by using the accrual accounting method. Periodic physical inventory and valuation are performed to calculate ending inventory.

Variable costs are costs that change from one time period to another, often changing in tandem with sales. To calculate it, add the beginning inventory value to the additional inventory cost and subtract the ending inventory value. Examples of pure service companies include accounting firms, law offices, real estate appraisers, business consultants, professional dancers, etc. Even though all of these industries have business expenses and normally spend money to provide their services, they do not list COGS.

## What does the cost of goods sold mean?

At the end of the year, the products that were not sold are subtracted from the sum of beginning inventory and additional purchases. The final number derived from the calculation is the cost of goods sold for the year. This guide has walked you through the step-by-step process of profit margin calculation, ensuring that you’re well-equipped to navigate the complexities of financial analysis. Additionally, we’ve introduced an outstanding solution for all your office needs—WPS Office. With its stability, modern design, and versatile features, WPS Office is a game-changer in the realm of document processing.

Because COGS is a cost of doing business, it is recorded as a business expense on income statements. Knowing the cost of goods sold helps analysts, investors, and managers estimate a company’s bottom line. While this movement is beneficial for income tax purposes, the business will have less profit for its shareholders. Businesses thus try to keep their COGS low so that net profits will be higher.

## Step 3: Organizing Your Data

Without properly calculating the cost of goods sold, you will not be able to determine your profit margin, or if your business is making a profit in the first place. COGS is not addressed in any detail in generally accepted accounting principles (GAAP), but COGS is defined as only the cost of inventory items sold during a given period. Not only do service companies have no goods to sell, but purely service companies also do not have inventories. If COGS is not listed on a company’s income statement, no deduction can be applied for those costs.

1. The gross profit metric represents the earnings remaining once direct costs (i.e. COGS) are deducted from revenue.
2. Items made last cost more than the first items made, because inflation causes prices to increase over time.
3. The IRS requires businesses that produce, purchase, or sell merchandise for income to calculate the cost of their inventory.
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By mastering the art of profit margin calculation, you can take the reins of your business, ensuring that every transaction yields the expected profit. While the concept might seem daunting, this guide aims to demystify the process, equipping you with the ability to effortlessly compute profit margins in Excel. Some service companies may record the cost of goods sold as related to their services.

## Inventory Cost Method

Net profit margin is a key financial metric that offers insight into a company’s overall profitability by measuring the percentage of profit it retains from its total revenue. This metric accounts for all direct and indirect expenses, including costs of goods sold (COGS), operating expenses (OPEX), interest (I), and taxes (T). This tutorial will guide you through the process of calculating the net profit margin using Microsoft Excel. Costs of revenue exist for ongoing contract services that can include raw materials, direct labor, shipping costs, and commissions paid to sales employees.

## What is Cost of Goods Sold (COGS)?

Determining the cost of goods sold is only one portion of your business’s operations. But understanding COGS can help you better understand your business’s financial health. The average cost method, or weighted-average method, does not take into consideration price inflation or deflation.

## How Does COGS Affect Gross Profit?

For multi-step income statements, subtract the cost of goods sold from sales. You can then deduct other expenses from gross profits to determine your company’s net income. It takes into account not only the cost of goods sold (COGS) but also operating expenses (OPEX). In this concise tutorial, we will guide you through the process of calculating the operating profit margin using Microsoft Excel. You should record the cost of goods sold as a business expense on your income statement.

Ending inventory costs can be reduced for damaged, worthless, or obsolete inventory. For worthless inventory, you must provide evidence that it was destroyed. For obsolete (out of date) inventory, you must also show evidence of the decrease in value. Once you have gathered the relevant information, you can calculate the cost of goods sold. Throughout Year 1, the retailer purchases \$10 million in additional inventory and fails to sell \$5 million in inventory. Our partners cannot pay us to guarantee favorable reviews of their products or services.