-74.37% is the change from 636 to 163
Calculation steps:
[( 163 - 636 ) ÷ 636] x 100 = -74.37%
Formula
Percentage change = [(163 - 636) / 636] x 100
Subtract the new number by the original number
163 - 636 = -473
-473 ÷ 636 = -0.7437106918238994
-0.7437106918238994 x 100 = -74.37%