-31.47% is the change from 823 to 564
Calculation steps:
[( 564 - 823 ) ÷ 823] x 100 = -31.47%
Formula
Percentage change = [(564 - 823) / 823] x 100
Subtract the new number by the original number
564 - 823 = -259
-259 ÷ 823 = -0.31470230862697446
-0.31470230862697446 x 100 = -31.47%