John Hoffman is evaluating a business opportunity to sell premium car wax at vintage car shows. The wax is sold in 64-ounce tubs. John can buy the premium wax at a wholesale cost of $30 per tub. He plans to sell the premium wax for $80 per tub. He estimates fixed costs such as travel costs, booth rental cost, and lodging to be $900 per car show. Read the requirements. Requirement 1. Determine the number of tubs John must sell per show to break even. Begin by identifying the formula to compute the sales in units at various levels of operating income using the contribution margin approach. Requirements 1. Determine the number of tubs John must sell per show to break even. 2. Assume John wants to earn a profit of $1,100 per show. a. Determine the sales volume in units necessary to eam the desired profit. b. Determine the sales volume in dollars necessary to earn the desired profit. c. Using the contribution margin format, prepare an income statement (condensed version) to confirm your answers to parts a and b. 3. Determine the margin of safety between the sales volume at the breakeven point and the sales volume required to eam the desired profit. Determine the margin of safety in both sales dollars, units, and as a percentage. Requirement 1. Determine the number of tubs John must sell per show to break even. Begin by identifying the formula to compute the sales in units at various levels of operating income using the sontribution margin approach