-98.1% is the change from 158 to 3
Calculation steps:
[( 3 - 158 ) ÷ 158] x 100 = -98.1%
Formula
Percentage change = [(3 - 158) / 158] x 100
Subtract the new number by the original number
3 - 158 = -155
-155 ÷ 158 = -0.9810126582278481
-0.9810126582278481 x 100 = -98.1%