-3.37% is the change from 624 to 603
Calculation steps:
[( 603 - 624 ) ÷ 624] x 100 = -3.37%
Formula
Percentage change = [(603 - 624) / 624] x 100
Subtract the new number by the original number
603 - 624 = -21
-21 ÷ 624 = -0.03365384615384615
-0.03365384615384615 x 100 = -3.37%