E$5-17($Algo$)$ Determining Cost Behavior, Preparing Contribution Margin Income Statement LO $5-1,5-5]$

Riverside Incorporated makes one model of wooden canoe. Partial information for it follows:

$\backslash$table$[[$Number of Canoes Produced and Sold,$525,675,825],[$Total costs,,,$],[$Variable costs,$$72,975,?,?$