Answer:
net increase by = $7856
Explanation:
given data
costs to produce = 11200 units
Direct materials = $9408
Direct labor = 12656
Variable overhead = 14112
Fixed overhead = 16200
sell Sunland = $2.85
additional income = $3600
solution
we find here first fix overhead buy is that is
fix overhead buy = 16200 - 3600 = $12600
so purchase cost is here
purchase cost = 11200 × $2.85 = $31920
so net increase = ( Direct materials + Direct labor + Variable overhead + Fixed overhead ) - ( fix overhead buy + purchase cost ) ..................1
net increase = ( 9408 + 12656 + 14112 + 16200 ) - ( 12600 + 31920)
net increase by= $7856