-70.44% is the change from 636 to 188
Calculation steps:
[( 188 - 636 ) ÷ 636] x 100 = -70.44%
Formula
Percentage change = [(188 - 636) / 636] x 100
Subtract the new number by the original number
188 - 636 = -448
-448 ÷ 636 = -0.7044025157232704
-0.7044025157232704 x 100 = -70.44%