-74.21% is the change from 636 to 164
Calculation steps:
[( 164 - 636 ) ÷ 636] x 100 = -74.21%
Formula
Percentage change = [(164 - 636) / 636] x 100
Subtract the new number by the original number
164 - 636 = -472
-472 ÷ 636 = -0.7421383647798742
-0.7421383647798742 x 100 = -74.21%