\"'I'\"it'lL'JlNl'l'Jl\"J |\"|"'|'|'"|"|\"\" Nl'l'i'l\"'l\"|"|\"'|\"'I'le'Wl . . .. ' . Stuart Manufacturing produces metal picture frames. The company's income statements for the last two years are presented below: Last year This year Units sold 52,100 74,200 Sales $800,000 $1,120,000 Less: Cost ofgoods sold 550,000 720,000 Gross margin 250,000 410,000 Less: Operating expenses 150,000 190,000 Operating income $100,000 $220,000 The company has no beginning or ending inventories, therefore cost of goods sold will equal cost of goods manufactured. All activity in this problem is within the company's relevant range of operation. Re uired: (:1) Using the g' k-Iaw method estimate the cost formula for TOTAL variable cost per unit and its TOTAL xed costs (Remember that this is a manufacturing rm). TOTAL variable cost per unit TOTAL xed costs ('0) Calculate the total contribution margin for this year