Grover Company has the following data for the production and sale of 2,500 units $750 per unit Sales price per unit Fixed costs Marketing and administrative Manufacturing overhead $450,000 per period $300,000 per period Variable costs: Marketing and administrative Manufacturing overhead Direct labor Direct Materials $40 per unit $65 per unit $85 per unit $250 per unit What is the prime cost per unit? O $85 O $335 O $315 O $520