-39.78% is the change from 822 to 495
Calculation steps:
[( 495 - 822 ) ÷ 822] x 100 = -39.78%
Formula
Percentage change = [(495 - 822) / 822] x 100
Subtract the new number by the original number
495 - 822 = -327
-327 ÷ 822 = -0.3978102189781022
-0.3978102189781022 x 100 = -39.78%