-0.17% is the change from 603 to 602
Calculation steps:
[( 602 - 603 ) ÷ 603] x 100 = -0.17%
Formula
Percentage change = [(602 - 603) / 603] x 100
Subtract the new number by the original number
602 - 603 = -1
-1 ÷ 603 = -0.001658374792703151
-0.001658374792703151 x 100 = -0.17%