-47.83% is the change from 621 to 324
Calculation steps:
[( 324 - 621 ) ÷ 621] x 100 = -47.83%
Formula
Percentage change = [(324 - 621) / 621] x 100
Subtract the new number by the original number
324 - 621 = -297
-297 ÷ 621 = -0.4782608695652174
-0.4782608695652174 x 100 = -47.83%