-87.82% is the change from 156 to 19
Calculation steps:
[( 19 - 156 ) ÷ 156] x 100 = -87.82%
Formula
Percentage change = [(19 - 156) / 156] x 100
Subtract the new number by the original number
19 - 156 = -137
-137 ÷ 156 = -0.8782051282051282
-0.8782051282051282 x 100 = -87.82%