-0.84% is the change from 829 to 822
Calculation steps:
[( 822 - 829 ) ÷ 829] x 100 = -0.84%
Formula
Percentage change = [(822 - 829) / 829] x 100
Subtract the new number by the original number
822 - 829 = -7
-7 ÷ 829 = -0.008443908323281062
-0.008443908323281062 x 100 = -0.84%