-98.56% is the change from 139 to 2
Calculation steps:
[( 2 - 139 ) ÷ 139] x 100 = -98.56%
Formula
Percentage change = [(2 - 139) / 139] x 100
Subtract the new number by the original number
2 - 139 = -137
-137 ÷ 139 = -0.9856115107913669
-0.9856115107913669 x 100 = -98.56%