formula for variable cost ratio
Variable cost ratio = total variable cost / sales. As long as price and variable cost remain the same, these ratios will remain the same. It does not matter if the company sells 10 units or 1 million units, the percentage of each sale that becomes contribution margin or does to cover variable costs is the same.angout Limited, LLC sells one product priced at $40 per unit. The variable costs (direct materials, direct labor, variable overhead and variable selling) is $25 per unit. Calculate the contribution margin per unit, the contribution margin ratio and the variable cost ratio.