-72.96% is the change from 636 to 172
Calculation steps:
[( 172 - 636 ) ÷ 636] x 100 = -72.96%
Formula
Percentage change = [(172 - 636) / 636] x 100
Subtract the new number by the original number
172 - 636 = -464
-464 ÷ 636 = -0.7295597484276729
-0.7295597484276729 x 100 = -72.96%