-99.75% is the change from 798 to 2
Calculation steps:
[( 2 - 798 ) ÷ 798] x 100 = -99.75%
Formula
Percentage change = [(2 - 798) / 798] x 100
Subtract the new number by the original number
2 - 798 = -796
-796 ÷ 798 = -0.9974937343358395
-0.9974937343358395 x 100 = -99.75%