-47.02% is the change from 621 to 329
Calculation steps:
[( 329 - 621 ) ÷ 621] x 100 = -47.02%
Formula
Percentage change = [(329 - 621) / 621] x 100
Subtract the new number by the original number
329 - 621 = -292
-292 ÷ 621 = -0.47020933977455714
-0.47020933977455714 x 100 = -47.02%