Answer:
6.62
Step-by-step explanation:
total production costs = total output x average total cost per unit = 260 calculators x $10 per unit = $2,600
total fixed costs = $880
total variable costs = total production costs - total fixed costs = $2,600 - $880 = $1,720
variable cost per unit = total variable costs / total output = $1,720 / 260 calculators = $6.61538 = $6.62 per unit