-4.03% is the change from 621 to 596
Calculation steps:
[( 596 - 621 ) ÷ 621] x 100 = -4.03%
Formula
Percentage change = [(596 - 621) / 621] x 100
Subtract the new number by the original number
596 - 621 = -25
-25 ÷ 621 = -0.040257648953301126
-0.040257648953301126 x 100 = -4.03%