-2.74% is the change from 621 to 604
Calculation steps:
[( 604 - 621 ) ÷ 621] x 100 = -2.74%
Formula
Percentage change = [(604 - 621) / 621] x 100
Subtract the new number by the original number
604 - 621 = -17
-17 ÷ 621 = -0.027375201288244767
-0.027375201288244767 x 100 = -2.74%