-22.81% is the change from 675 to 521
Calculation steps:
[( 521 - 675 ) ÷ 675] x 100 = -22.81%
Formula
Percentage change = [(521 - 675) / 675] x 100
Subtract the new number by the original number
521 - 675 = -154
-154 ÷ 675 = -0.22814814814814816
-0.22814814814814816 x 100 = -22.81%