Answer:
Option b is correct
Step-by-step explanation:
The computation of the impact in the operating income is given below:
Sale price per unit 350
Less: variable cost per unit -94.49
Contribution margin per unit 255.51
multiplied by units 85
Total contribution margin 21718
Less fixed cost -$30,000
Increase or decrease in operating income $8,282
The variable cost should be
Manufacturing 900,000
Add: selling & admin 300,000
Total 1,200,000
Divided by no of units 127
Variable cost per unit 94.49