-33.94% is the change from 819 to 541
Calculation steps:
[( 541 - 819 ) ÷ 819] x 100 = -33.94%
Formula
Percentage change = [(541 - 819) / 819] x 100
Subtract the new number by the original number
541 - 819 = -278
-278 ÷ 819 = -0.33943833943833945
-0.33943833943833945 x 100 = -33.94%