Answer: Hello your question is incomplete below is the complete question
answer :
1) attached below
2a) Increases by $25,176
Step-by-step explanation:
1) Attached below is the contribution format income statement
2a) Determine by how much the net operating income will change
monthly advertising increment = $25,000
Assumed increase in division's sales = 16%
first step : determine increment in contribution margin of west division
= 313,600 * 0.16 = 50,176
change in net operating income = 50176 - monthly advert increment
= 50176 - 25,000 = $25,176 ( increases )