-99.15% is the change from 826 to 7
Calculation steps:
[( 7 - 826 ) ÷ 826] x 100 = -99.15%
Formula
Percentage change = [(7 - 826) / 826] x 100
Subtract the new number by the original number
7 - 826 = -819
-819 ÷ 826 = -0.9915254237288136
-0.9915254237288136 x 100 = -99.15%