-31.23% is the change from 823 to 566
Calculation steps:
[( 566 - 823 ) ÷ 823] x 100 = -31.23%
Formula
Percentage change = [(566 - 823) / 823] x 100
Subtract the new number by the original number
566 - 823 = -257
-257 ÷ 823 = -0.31227217496962334
-0.31227217496962334 x 100 = -31.23%