Engage B2B buyers with remarkable content experiences for every stage of their journey. Gross operating and net. How To Calculate Gross Profit Margin Profit Profitable Business Cost Of Goods Sold How to calculate profit margins. . There are a number of ways to increase your profitability. There is a gross profit margin bigger and a net profit margin smaller. Subtract ending inventory costs as of May 31. Gross profit margin shows what portion of sales income you can keep in the business. Gross profit margin shows what portion of sales income you can keep in the business. Businesses can use these values within specific formulas to calculate several types of profit margins. Usually markup is calculated on a per-product basis. You can use this online profit margin calculator from BKL accountants. Profit margin calculation Profit margin is profit divided by revenue times 100. You can calculate ...