Concord Electrical provides the following cost information related to its production of electronic circuit boards.

Per Unit Variable manufacturing cost $ 41

Fixed manufacturing cost $ 26

Variable selling and administrative expenses $ 7

Fixed selling and administrative expenses $ 16

Desired ROI per unit $ 12

Determine Concord Electricals markup percentage using variable-cost pricing.

A.48.15%. B. 112.50%. C.46.15%. D.14.58%.