Junko Pte Ltd. sells two models of their product in Brunei, the Low-End model and the High-End model. They have supplied the following data:

Low-End High-End

Selling Price $41 $80

Expected unit sales per month 2300 12000

variable production costs per unit $18 $11

variable selling and admin costs per unit $8 $10

Fixed Expenses are $76,563 per month

Junko's overall contribution margin ratio for the expected sales mix is to closest to:

Select one:

A. 42.09%

B. 50.64%

C. 41.03%

D. 48.29%

E. 57.91%