-97.12% is the change from 139 to 4
Calculation steps:
[( 4 - 139 ) ÷ 139] x 100 = -97.12%
Formula
Percentage change = [(4 - 139) / 139] x 100
Subtract the new number by the original number
4 - 139 = -135
-135 ÷ 139 = -0.9712230215827338
-0.9712230215827338 x 100 = -97.12%