-39.54% is the change from 822 to 497
Calculation steps:
[( 497 - 822 ) ÷ 822] x 100 = -39.54%
Formula
Percentage change = [(497 - 822) / 822] x 100
Subtract the new number by the original number
497 - 822 = -325
-325 ÷ 822 = -0.3953771289537713
-0.3953771289537713 x 100 = -39.54%