-82.58% is the change from 798 to 139
Calculation steps:
[( 139 - 798 ) ÷ 798] x 100 = -82.58%
Formula
Percentage change = [(139 - 798) / 798] x 100
Subtract the new number by the original number
139 - 798 = -659
-659 ÷ 798 = -0.8258145363408521
-0.8258145363408521 x 100 = -82.58%