-98.86% is the change from 788 to 9
Calculation steps:
[( 9 - 788 ) ÷ 788] x 100 = -98.86%
Formula
Percentage change = [(9 - 788) / 788] x 100
Subtract the new number by the original number
9 - 788 = -779
-779 ÷ 788 = -0.9885786802030457
-0.9885786802030457 x 100 = -98.86%