-5.34% is the change from 637 to 603
Calculation steps:
[( 603 - 637 ) ÷ 637] x 100 = -5.34%
Formula
Percentage change = [(603 - 637) / 637] x 100
Subtract the new number by the original number
603 - 637 = -34
-34 ÷ 637 = -0.05337519623233909
-0.05337519623233909 x 100 = -5.34%