-85.27% is the change from 129 to 19
Calculation steps:
[( 19 - 129 ) ÷ 129] x 100 = -85.27%
Formula
Percentage change = [(19 - 129) / 129] x 100
Subtract the new number by the original number
19 - 129 = -110
-110 ÷ 129 = -0.8527131782945736
-0.8527131782945736 x 100 = -85.27%