Use the information in the table below to answer the quiz questions. The information in the table are for the manufacturer. Variable cost Selling price without sales promotion Selling price with sales promotion Average sales (units) Sales when on promotion (units) Sales after promotion (units) $1.25 $3.00 $2.50 2,500 3,500 2,200 What is the gross margin (%) without sales promotion? Select one: O a. 16.67% O b. 50% c. 40% d. 58.33% What is the gross margin (%) when sold at sales promotion price? Select one: O a. 40% b. 58.33% O c. 16.67% O d. 50% What is the contribution lost from cannibalization? Select one: O a. $0 b. $650 c. $525 d. $300 What is the unit contribution without sales promotion? Select one: a. $0.50 b. $2.50 c. $1.25 d. $1.75 What is the change in contribution from sales promotion taking into account cannibalization? Select one: a. -$3150 b. $0 c. -$525 d. -$825