Ladanza 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 $153.00 per unit.

Sales volume (units)	12,400	13,590
Cost of sales	$954,800	$1,046,430
Selling and administrative costs	$688,000	$721,320

The best estimate of the total contribution margin when 13,360 units are sold is:

A. $338,770

B. $755,310

C. $641,280

D. $430,850