-5.08% is the change from 866 to 822
Calculation steps:
[( 822 - 866 ) ÷ 866] x 100 = -5.08%
Formula
Percentage change = [(822 - 866) / 866] x 100
Subtract the new number by the original number
822 - 866 = -44
-44 ÷ 866 = -0.050808314087759814
-0.050808314087759814 x 100 = -5.08%