-98.91% is the change from 826 to 9
Calculation steps:
[( 9 - 826 ) ÷ 826] x 100 = -98.91%
Formula
Percentage change = [(9 - 826) / 826] x 100
Subtract the new number by the original number
9 - 826 = -817
-817 ÷ 826 = -0.9891041162227603
-0.9891041162227603 x 100 = -98.91%