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Bent Tree incurred the folowing unit costs during the year variable manufacturing cost 527 fred manufecturing cost, St0; variable marketing and administrative cost S8 and fxed marketing and administrative cost, $6. During the year, Bent Tree produced 30,000 unilts and sold 25,000 units of product. The selling price was $67 per unit What was Bent Tree's total gross margin? O $750,000 O $1000.000 O None of these. O $800.000 O $400000