Ben's Company manufactures and sells one product. The following information is available for the production of 30,000 units. The relevant range of activity is 30,000 - 50,000 units. Total costs at 30,000 units Variable cost $180,000 Fixed cost 300,000 Total cost $ 480,000 What is the total variable cost at 43,000 units? (HINT: calculate unit variable cost at 30,000 units first!) $289,000 $300,000 $258,000 $500,000