-96.49% is the change from 798 to 28
Calculation steps:
[( 28 - 798 ) ÷ 798] x 100 = -96.49%
Formula
Percentage change = [(28 - 798) / 798] x 100
Subtract the new number by the original number
28 - 798 = -770
-770 ÷ 798 = -0.9649122807017544
-0.9649122807017544 x 100 = -96.49%