The Contribution Margin per unit (CM) can be calculated from the difference of Selling Price per unit (SP) and Total Expenses per unit (TE).
First, let’s calculate the value of SP:
SP = Sales / Units sold
SP = $1,043,400 / 22,200 units sold
SP = $47
Second, calculate all expenses:
Direct materials per unit = $234,948 / 27,970 units manufactured = $8.4
Direct labor per unit = $131,459 / 27,970 units manufactured = $4.7
Variable manufacturing overhead per unit = $240,542 / 27,970 units manufactured = $8.6
Variable selling expenses per unit = $113,220 / 22,200 units sold = $5.1
TE = $26.8
Therefore the CM is:
CM = SP – TE
CM = $47 - $26.8
CM = $20.2 per unit