-59.83% is the change from 819 to 329
Calculation steps:
[( 329 - 819 ) ÷ 819] x 100 = -59.83%
Formula
Percentage change = [(329 - 819) / 819] x 100
Subtract the new number by the original number
329 - 819 = -490
-490 ÷ 819 = -0.5982905982905983
-0.5982905982905983 x 100 = -59.83%