Answer:
Total incremental net income = $28,000
Incremental per gallon increase in net income = $0.70 per unit
Explanation:
a. The preparation of incremental statement to find out the increase in net income
Total production $140,000
Less:
Incremental cost
Direct material $68,000
($1.70 × 40,000 gallons)
Direct labor $24,000
($0.60 × 40,000 gallons)
Variable manufacturing
overhead $20,000
($0.50 × 40,000 gallons)
Total incremental cost ($112,000)
Total incremental net income $28,000
b. Incremental per gallon increase in net income = Total incremental net income ÷ Total quantity
= $28,000 ÷ 40,000 gallons
= $0.70 per unit
Therefore the total incremental net income is $28,000 and incremental per gallon increase in net income is $0.70 per unit.