-3.54% is the change from 819 to 790
Calculation steps:
[( 790 - 819 ) ÷ 819] x 100 = -3.54%
Formula
Percentage change = [(790 - 819) / 819] x 100
Subtract the new number by the original number
790 - 819 = -29
-29 ÷ 819 = -0.03540903540903541
-0.03540903540903541 x 100 = -3.54%