-31.87% is the change from 819 to 558
Calculation steps:
[( 558 - 819 ) ÷ 819] x 100 = -31.87%
Formula
Percentage change = [(558 - 819) / 819] x 100
Subtract the new number by the original number
558 - 819 = -261
-261 ÷ 819 = -0.31868131868131866
-0.31868131868131866 x 100 = -31.87%