-31.14% is the change from 819 to 564
Calculation steps:
[( 564 - 819 ) ÷ 819] x 100 = -31.14%
Formula
Percentage change = [(564 - 819) / 819] x 100
Subtract the new number by the original number
564 - 819 = -255
-255 ÷ 819 = -0.31135531135531136
-0.31135531135531136 x 100 = -31.14%