-38.81% is the change from 822 to 503
Calculation steps:
[( 503 - 822 ) ÷ 822] x 100 = -38.81%
Formula
Percentage change = [(503 - 822) / 822] x 100
Subtract the new number by the original number
503 - 822 = -319
-319 ÷ 822 = -0.3880778588807786
-0.3880778588807786 x 100 = -38.81%