lacob 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 $188.00 per unit. Sales volume (units) 11,800 $1,014,800 $1,143,800 627,000 13,300 Cost of sales Selling and administrative costs 667,500 The best estimate of the total contribution margin when 12,460 units are sold is: Multiple Choice $310,170 $934,500 $409,430