-33.58% is the change from 819 to 544
Calculation steps:
[( 544 - 819 ) ÷ 819] x 100 = -33.58%
Formula
Percentage change = [(544 - 819) / 819] x 100
Subtract the new number by the original number
544 - 819 = -275
-275 ÷ 819 = -0.33577533577533575
-0.33577533577533575 x 100 = -33.58%