Restate the following income statement in contribution margin format (Round answers to 2 decimal places, eg 15.25 or 15.25%) Sales ($58 per unit) $7,772.00 Less cost of goods sold ($34 per unit) 4,556.00 Gross margin 3,216.00 Lass operating expenses Salaries Advertising Shipping ($1.48 per unit) Operating income $830.00 427.00 190.32 1,455.32 $1,760.60