5. Solid Co products has fixed operating costs of 100,000 $, Price 24 $ variable operating cost of 18 $ per unit. a. Calculate the operating breakeven point in units. b. Calculate the firm's EBIT at 14,000, 15,000, and 16,000 units respectively. per unit, c. With 15,000 units as a base, what are the percentage changes in units sold and EBIT as sales move from the base to other sales levels used in part b. d. Use the percentages computed in part c to determine the DOL.