-30.89% is the change from 819 to 566
Calculation steps:
[( 566 - 819 ) ÷ 819] x 100 = -30.89%
Formula
Percentage change = [(566 - 819) / 819] x 100
Subtract the new number by the original number
566 - 819 = -253
-253 ÷ 819 = -0.3089133089133089
-0.3089133089133089 x 100 = -30.89%