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Gaden Company sells a product for $40 per unit. Variable costs are $25 per unit, and fixed costs are $2,200 per month. The company expects to sell 610 units in September. Calculate the contribution margin per unit, in total, and 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