Answer:
Answer: The net operating income used in contribution approach the first quarter is 171600
Explanation:
Description Amount Amount
Sales 960000
Variable expenses:
Cost of good sold 670000
Variable selling 80000
(5 per book*16000 books)
Variable administrative 38400
(960000*4%)
Total variables expenses 788400
contribution margin 171600
working note:
unit sales=960000/60 per book=16000 book