-0.63% is the change from 636 to 632
Calculation steps:
[( 632 - 636 ) ÷ 636] x 100 = -0.63%
Formula
Percentage change = [(632 - 636) / 636] x 100
Subtract the new number by the original number
632 - 636 = -4
-4 ÷ 636 = -0.006289308176100629
-0.006289308176100629 x 100 = -0.63%