Answer:
The president could increase this year's fixed marketing expense and still earn the same $840,000 net operating income as last year if the increase in fixed marketing expense does not exceed in total amount than $198,250.
Step-by-step explanation:
a) Data and Calculations:
Income Statement Last Year's This Year's
Sales $ 2,080,000 $2,600,000 ($2,080,000 x 1.25)
Variable expenses 1,040,000 1,361,750 (32,500 x $41.90)
Contribution margin 1,040,000 $1,238,250
Fixed expenses 200,000 398,250 ($198,250)
Net operating income $ 840,000 $840,000