-91.24% is the change from 137 to 12
Calculation steps:
[( 12 - 137 ) ÷ 137] x 100 = -91.24%
Formula
Percentage change = [(12 - 137) / 137] x 100
Subtract the new number by the original number
12 - 137 = -125
-125 ÷ 137 = -0.9124087591240876
-0.9124087591240876 x 100 = -91.24%