-22.22% is the change from 621 to 483
Calculation steps:
[( 483 - 621 ) ÷ 621] x 100 = -22.22%
Formula
Percentage change = [(483 - 621) / 621] x 100
Subtract the new number by the original number
483 - 621 = -138
-138 ÷ 621 = -0.2222222222222222
-0.2222222222222222 x 100 = -22.22%