Jamie had the following expenses over the past four years.
Nondiscretionary cost Discretionary cost Total income
Year 1 56,000 7,000 60,000
Year 2 54,000 8,000 60,000
Year 3 52,000 9,000 60,000
Year 4 50,000 10,000 60,000
Calculate his Nondiscretionary Cost percentage, his Discretionary Cost percentage and his Total Operating Cost percentage. What would you advise Jamie regarding the changes in these percentages over time? (10 pts)