Gabelman Company sells a product for $100 per unit. Variable costs are $55 per unit, and fixed costs are $2,200 per month. The company expects to sell 580 units in September. Calculate the contribution margin per unit, in total, and as a ratio. Gardner Company sells a product for $60 per unit. Variable costs are $25 per unit, and fixed costs are $2,000 per month. The company expects to sell 570 units in September. Calculate the contribution margin per unit, in total, and a as a ratio Calculate the contribution margin per unit. Select the formula labels and then enter the amounts to compute the contribution margin per unit. Contribution margin per unit Calculate the total contribution margin. Select the formula labels and then enter the amounts to compute the contribution margin. Contribution margin Calculate the contribution margin ratio. Select the formula labels and then enter the amounts to compute the contribution margin ratio. (Round your answer to the nearest percent, X%.) Contribution margin ratio