-97.48% is the change from 159 to 4
Calculation steps:
[( 4 - 159 ) ÷ 159] x 100 = -97.48%
Formula
Percentage change = [(4 - 159) / 159] x 100
Subtract the new number by the original number
4 - 159 = -155
-155 ÷ 159 = -0.9748427672955975
-0.9748427672955975 x 100 = -97.48%