- How do you find the commission rate?
A commission is a percentage of total sales as determined by the rate of commission. To find the commission on a sale, multiply the rate of commission by the total sales. Just as we did for computing sales tax, remember to first convert the rate of commission from a percent to a decimal.

- How do you calculate sales commission?
Commission is earnings from a sale. Typically, companies pay out a percentage based on total sales revenue. Commission can be calculated with this formula: commission = total sales revenue * commission rate.