-99.52% is the change from 826 to 4
Calculation steps:
[( 4 - 826 ) ÷ 826] x 100 = -99.52%
Formula
Percentage change = [(4 - 826) / 826] x 100
Subtract the new number by the original number
4 - 826 = -822
-822 ÷ 826 = -0.9951573849878934
-0.9951573849878934 x 100 = -99.52%