-77.99% is the change from 636 to 140
Calculation steps:
[( 140 - 636 ) ÷ 636] x 100 = -77.99%
Formula
Percentage change = [(140 - 636) / 636] x 100
Subtract the new number by the original number
140 - 636 = -496
-496 ÷ 636 = -0.779874213836478
-0.779874213836478 x 100 = -77.99%