March 27000 Units produced and sold Total costs: Direct labor Direct materials Variable overhead costs Factory rent Sales commissions Administrative salaries 151200 116100 135000 150000 81000 144000 Use the information above for March. Units produced equals units sold, and there are no ending inventories of any kind. 1. Assume the units sell for $80 each. Compute the gross margin for March. 3. Assume the units sell for $80 each. Compute the contribution margin for March