need help with 4 6 and 7

Instructions 1 Desert Dragon Monster 2 Sales price $5,200.00 $5,300.00 3 Variable cost of goods sold 3,240.00 3,450.00 4 Manufacturing margin $1,960.00 $1,850.00 5 Variable selling expenses 712.00 1,108.00 6 Contribution margin $1,248.00 $742.00 7 Fixed expenses 470.00 320.00 8 Income from operations $778.00 $422.00 In addition, the following sales unit volume information for the period is as follows: Mountain Monster Desert Dragon Sales unit volume 4,800 4,650 Contribution Margin Report PowerTrain Sports Inc. Score: 56/78 Contribution Margin by Product Mountain 1 Desert Dragon Monster 2 Revenues $24,960,000.00 $24,645,000.00 3 Variable cost of goods sold 15,552,000.00 16,042,500.00 4 Manufacturing margin 5 Variable selling expenses 3,417,600.00 5,152,200.00 6 Contribution margin 7 Contribution margin ratio