-37.96% is the change from 822 to 510
Calculation steps:
[( 510 - 822 ) ÷ 822] x 100 = -37.96%
Formula
Percentage change = [(510 - 822) / 822] x 100
Subtract the new number by the original number
510 - 822 = -312
-312 ÷ 822 = -0.3795620437956204
-0.3795620437956204 x 100 = -37.96%