Answer: $58,800
Explanation:
Total variable costs:
= Direct material + Direct manufacturing labor + Manufacturing overhead + Selling costs
= $ 7.00 + $1.45 + 0.95 + 2.50
= $11.9
Currently:
Net operating income = Sales - Variable cost - Fixed cost
= ($30 × 16,000) - ($11.9 × 16,000) - $140,000
= $480,000 - $190,400 - $140,000
= $149,600
Now:
Net operating income = Sales - Variable cost - Fixed cost
= [$30(1-0.1225)] × 16,000 - ($11.9 × 16,000) - $140,000
= $421,200 - $190,400 - $140,000
= $90,800
Hence,
Decrease in net operating income = ($149,600 - $90,800)
= $58,800