-91.77% is the change from 158 to 13
Calculation steps:
[( 13 - 158 ) ÷ 158] x 100 = -91.77%
Formula
Percentage change = [(13 - 158) / 158] x 100
Subtract the new number by the original number
13 - 158 = -145
-145 ÷ 158 = -0.9177215189873418
-0.9177215189873418 x 100 = -91.77%