Grover Company has the following data for the production and sale of 2,000 units $ 800 per unit $400,000 per period $200,000 per period Sales price per unit Fixed costs: Marketing and administrative Manufacturing overhead Variable costs: Marketing and administrative Manufacturing overhead Direct labor Direct materials $ $ $ $ 50 per unit Be per unit 100 per unit 200 per unit What is the contribution margin per unit? Multiple Choice 570 What is the contribution margin per unit? Multiple Choice O $70 O $320 $370 $430