I need help with number seven. I got 84 but it was incorrect.

Columbia Products produced and sold 1.300 units of the company's only product in March. You have collected the following information from the accounting records $ 126 Sales price (per unit) Manufacturing costs Fixed overhead (for the month) Direct labor (per unit) Direct materials (per unit) Variable overhead (per unit) Marketing and administrative costs Fixed costs for the month) Variable costs (per unit) 16,900 9 34 26 22,100 Required: a. Compute the following: 1 $ 2 3 69 102 72 82 $ 4 $ 5 Vanable manufacturing cost per unit Full cost per unit Variable cost per unit Full absorption cost per unit Prime cost per unit Conversion cost per unit Profit margin per unit Contribution margin per unit Gross margin per unit 43 S S 6 48 7 8 $ 54 9 $ 44