Haras Corporation is a wholesaler that sells a single product. Management has provided the following cost data for two levels of monthly sales volume. The company sells the product for $141.30 per unit. What is the total variable cost per unit? Sales volume (units).... 6,000 7,000 Cost of sales............. $347,400 $405,300 Selling & Admin costs...$436,800 $458,500 How would I go about completing this problem? So confused.