Question 6 (5 points) : ABC Co has 3 products : Product M, product N and product I, the sales Revenue for product M is 120,000 $, the sales Revenue for product Nis 180,000 $ and the sales Revenue for the company is 600,000 $, the variable cost for product M is 60,000 $, the variable cost for product N is 45,000 $ and the Variable cost for the company is 200,000 $, and the company has Net operating income 300,000 $, find: the contribution margin for each product, and the amount of sales Revenue that each product has to attain in order for the company to break-even. (show your work)