-97.2% is the change from 143 to 4
Calculation steps:
[( 4 - 143 ) ÷ 143] x 100 = -97.2%
Formula
Percentage change = [(4 - 143) / 143] x 100
Subtract the new number by the original number
4 - 143 = -139
-139 ÷ 143 = -0.972027972027972
-0.972027972027972 x 100 = -97.2%