-84.25% is the change from 127 to 20
Calculation steps:
[( 20 - 127 ) ÷ 127] x 100 = -84.25%
Formula
Percentage change = [(20 - 127) / 127] x 100
Subtract the new number by the original number
20 - 127 = -107
-107 ÷ 127 = -0.84251968503937
-0.84251968503937 x 100 = -84.25%