-35.41% is the change from 819 to 529
Calculation steps:
[( 529 - 819 ) ÷ 819] x 100 = -35.41%
Formula
Percentage change = [(529 - 819) / 819] x 100
Subtract the new number by the original number
529 - 819 = -290
-290 ÷ 819 = -0.3540903540903541
-0.3540903540903541 x 100 = -35.41%