-92.31% is the change from 156 to 12
Calculation steps:
[( 12 - 156 ) ÷ 156] x 100 = -92.31%
Formula
Percentage change = [(12 - 156) / 156] x 100
Subtract the new number by the original number
12 - 156 = -144
-144 ÷ 156 = -0.9230769230769231
-0.9230769230769231 x 100 = -92.31%