uality Stores, Inc., sells several products. Information of average revenue and costs is as follows: Selling price per unit Variable costs per unit: $20 Direct $6 material Direct manufacturing $1.80 labor Manufacturing $0.5 overhead Selling $3 $98,000 costs Annual fixed costs What is the contribution margin percentage? (Round your answer to the nearest whole percent.) A. 38% B. 34% C. 44% D. 59%