Answer:
1) Part 1. Operating Income = Revenue - Operating cost
=201,000 - 56,000
=$145,000
Part 2. Operating Income = Revenue - Operating cost
= 159,000 - 55,000
= $104,000
Part 3. Operating Income = Revenue - Operating cost
= 89,000 - 15,000
=$74,000
2. Part 1. Operating Income = Revenue - Operating cost
=201,000 - 45,600
=$155,400
Part 2. Operating Income = Revenue - Operating cost
=159,000 - 25,000
=$134,000
Part 3. Operating Income = Revenue - Operating cost
=89,000 - 55,400
=$33,600