-22.78% is the change from 158 to 122
Calculation steps:
[( 122 - 158 ) ÷ 158] x 100 = -22.78%
Formula
Percentage change = [(122 - 158) / 158] x 100
Subtract the new number by the original number
122 - 158 = -36
-36 ÷ 158 = -0.22784810126582278
-0.22784810126582278 x 100 = -22.78%