-92.41% is the change from 158 to 12
Calculation steps:
[( 12 - 158 ) ÷ 158] x 100 = -92.41%
Formula
Percentage change = [(12 - 158) / 158] x 100
Subtract the new number by the original number
12 - 158 = -146
-146 ÷ 158 = -0.9240506329113924
-0.9240506329113924 x 100 = -92.41%