Answer:
The correct option is (c) 21.78
Explanation:
Given:
Sales = $450
Costs = $350
Increased sales = 450×1.1 = $495
Increased cost (in the same proportion) = 350×1.1 = $385
EBIT = Sales - cost
= 495 - 385
= $110
EAT = 110×(1-0.34)
= $72.60
Retention Ratio = 30%
Addition to retained earnings = EAT × retention ratio
= 72.6 ×0.3
= $21.78
Therefore, addition to retained earnings is $21.78.