-3.89% is the change from 823 to 791
Calculation steps:
[( 791 - 823 ) ÷ 823] x 100 = -3.89%
Formula
Percentage change = [(791 - 823) / 823] x 100
Subtract the new number by the original number
791 - 823 = -32
-32 ÷ 823 = -0.038882138517618466
-0.038882138517618466 x 100 = -3.89%