-93.72% is the change from 191 to 12
Calculation steps:
[( 12 - 191 ) ÷ 191] x 100 = -93.72%
Formula
Percentage change = [(12 - 191) / 191] x 100
Subtract the new number by the original number
12 - 191 = -179
-179 ÷ 191 = -0.93717277486911
-0.93717277486911 x 100 = -93.72%