-98.86% is the change from 791 to 9
Calculation steps:
[( 9 - 791 ) ÷ 791] x 100 = -98.86%
Formula
Percentage change = [(9 - 791) / 791] x 100
Subtract the new number by the original number
9 - 791 = -782
-782 ÷ 791 = -0.988621997471555
-0.988621997471555 x 100 = -98.86%