-56.65% is the change from 819 to 355
Calculation steps:
[( 355 - 819 ) ÷ 819] x 100 = -56.65%
Formula
Percentage change = [(355 - 819) / 819] x 100
Subtract the new number by the original number
355 - 819 = -464
-464 ÷ 819 = -0.5665445665445665
-0.5665445665445665 x 100 = -56.65%