-16.79% is the change from 822 to 684
Calculation steps:
[( 684 - 822 ) ÷ 822] x 100 = -16.79%
Formula
Percentage change = [(684 - 822) / 822] x 100
Subtract the new number by the original number
684 - 822 = -138
-138 ÷ 822 = -0.1678832116788321
-0.1678832116788321 x 100 = -16.79%