-19.46% is the change from 632 to 509
Calculation steps:
[( 509 - 632 ) ÷ 632] x 100 = -19.46%
Formula
Percentage change = [(509 - 632) / 632] x 100
Subtract the new number by the original number
509 - 632 = -123
-123 ÷ 632 = -0.19462025316455697
-0.19462025316455697 x 100 = -19.46%