-35.9% is the change from 819 to 525
Calculation steps:
[( 525 - 819 ) ÷ 819] x 100 = -35.9%
Formula
Percentage change = [(525 - 819) / 819] x 100
Subtract the new number by the original number
525 - 819 = -294
-294 ÷ 819 = -0.358974358974359
-0.358974358974359 x 100 = -35.9%