Exercise $8-$ Variance analysis, working backward: Al$-$ Jabal Al$-$Abyad sells two products: $x$ and $Y.$ The company provides the following information for sales in the month of April, $2020$:

$\backslash$table$[[$Static$-$budget total contribution margin,ID $11,000],[$Budgeted units to be sold of all products,$2,000$ units$],[$Budgeted contribution margin per unit of $x,$ID $4$ per unit$],[$Budgeted contribution margin per unit of $Y,$ID $10$ per unit$],[$Total sales$-$quantity variance,ID $2,200$ U$],[$Actual sales$-$mix percentage of $x,60\%$