-82.69% is the change from 156 to 27
Calculation steps:
[( 27 - 156 ) ÷ 156] x 100 = -82.69%
Formula
Percentage change = [(27 - 156) / 156] x 100
Subtract the new number by the original number
27 - 156 = -129
-129 ÷ 156 = -0.8269230769230769
-0.8269230769230769 x 100 = -82.69%