-60.44% is the change from 819 to 324
Calculation steps:
[( 324 - 819 ) ÷ 819] x 100 = -60.44%
Formula
Percentage change = [(324 - 819) / 819] x 100
Subtract the new number by the original number
324 - 819 = -495
-495 ÷ 819 = -0.6043956043956044
-0.6043956043956044 x 100 = -60.44%