-17.56% is the change from 632 to 521
Calculation steps:
[( 521 - 632 ) ÷ 632] x 100 = -17.56%
Formula
Percentage change = [(521 - 632) / 632] x 100
Subtract the new number by the original number
521 - 632 = -111
-111 ÷ 632 = -0.17563291139240506
-0.17563291139240506 x 100 = -17.56%