If Albert’s monthly earnings rise by 20%, he would earn $560. If, instead, his earnings rise by only 21%, how much (in $) would he earn this month?  Answers
A) 643
B) 652
C) 660
D) 564
E) 693

Rationale: "= 560 / 1.2 ∗ 1.21 = 564 = 564 answer is d"
Answer: D