In addition, medical devices include in vitro diagnostic products, such as general purpose lab equipment, reagents, and test kits, which may include monoclonal antibody technology. Certain electronic radiation emitting products with medical application and claims meet the definition of medical device.
Sales commission is a variable cost because the amount of the account is subject to variation. Think about it: A used car salesman is paid a commission say of $500 for every car he sells for the month of October. If he sells only 2 cars, then the sales commission is $1000, If he sells a whopping 12 cars, then the sales commission is $6000!!
These amounts â sales, variable costs, and contribution margin â change in proportion to each other. If sales were to increase by 10 percent, then variable costs and contribution margin would also increase by 10 percent; $1,100 in sales would increase variable costs to $440 and contribution margin to $660.