Please show work

Bent Tree incurred the following unit costs during the year: variable man acturing cost $27, xed manufacturing cost $10: variable marketng and administrative cost, se, and xed marketing and administrative cost, S6. During the year, Bent Tree produced 30000 units end sold 25,000 unis of product. The selling price was $67 per unit. What was Bent Tree's total contribution margin? O None of these O $800,000 O $400.000 O $1,000,000 $750,000