-7.73% is the change from 621 to 573
Calculation steps:
[( 573 - 621 ) ÷ 621] x 100 = -7.73%
Formula
Percentage change = [(573 - 621) / 621] x 100
Subtract the new number by the original number
573 - 621 = -48
-48 ÷ 621 = -0.07729468599033816
-0.07729468599033816 x 100 = -7.73%