Can you explain?. Thank you.

Consider a four-year project with the following information: initial fixed asset investment = $510,000; straight-line depreciation to zero over the four-year life; zero salvage value; price = $20; variable costs = $10; fixed costs = $150,000; quantity sold = 81,000 units; tax rate = 34 percent. How sensitive is OCF to changes in quantity sold? (Do not round intermediate calculations. Round your answer to 2 decimal places, e.g., 32.16.) AOCFIAQ $