Doe corp 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 $209 per unit. level 1:Sales Volume(units) 15,000 ;cost of sales $1,250,000 ; selling and admin. costs $ 615,000. Level 2 : sales volume(units) 17,420 ; cost of sales $1,400,000 ; selling and admin. costs $ 650,000. The best estimate of the total monthly fixed cost is