Answer:
$10.50
Step-by-step explanation:
The computation of the relevant cost per unit is shown below:
= Direct material per unit + Direct labor per unit + supervision per unit + variable manufacturing overhead per unit
= $6 + $2.20 + $1.50 + $0.80
= $10.50
The relevant cost per unit only considered the direct material per unit, direct labor per unit, supervision per unit, and the variable manufacturing overhead per unit only
All other cost that is mentioned is not relevant. Hence, ignored it