E5.17 (LO 3,4,5), AP Chen Bucket Lida manufacturer of rain varrels, and the following data for 2019 compute (1) margin of safety and margin of safety Sales Sales price Variable costs Fixed costs HKSOX) per unit HKS240 per unit HK$195.00 Instructions a. What is the contribution margin ratio? b. What is the break-even point in sales? c. What is the margin of safety and the margin of safety ratio! d. If the company wishes to increase its total dollar contribution margin by 30% in 2020, by how much will it need to increase its sales if all other factors remain constant