P$2-1.($CVP for multiple products case$)$ Rowling Company produces and sells three products, product A$,$ product B$,$ and product $C.$ Over the most recent five years, Rowling sold, on average, $10,000$ units of A$,30,000$ units of B$,$ and $60,000$ units of $C,$ annually. The following information pertains to the prices and costs of the three products.

$\backslash$table$[[A_{?},B_{?},$C$,,],[\backslash$table$[[$Price$($$$)/$unit$],[30]],20,40,,],[$Variable costs $($$$)/$unit$,-14,-{22}_{?},,-{15}_{?}$