-29.85% is the change from 603 to 423
Calculation steps:
[( 423 - 603 ) ÷ 603] x 100 = -29.85%
Formula
Percentage change = [(423 - 603) / 603] x 100
Subtract the new number by the original number
423 - 603 = -180
-180 ÷ 603 = -0.29850746268656714
-0.29850746268656714 x 100 = -29.85%