P13-8 EBIT sensitivity Millard's Enterprises sells wooden baby chairs for S rs for $28 r xe ap 2 chair. The fixed operating costs are $23,000, and the variable operati chair. a. Calculate Millard's Enterprises' EBIT with an estimated sales quantit operating cost is ter chi cost is $18 per chairs. b. Calculate EBIT for sales of 10,000 and 14,000 chairs, respectively c. Calculate the percentage changes in units sold (with 12,000 chairs as the bas level) and related percentage changes in EBIT when sales are 10,000 and chairs, respectively 14000 d. Based on the answer in part c, comment on the sensitivity of changes in EBIT nse to changes in sales