137.4% is the change from 254 to 603
Calculation steps:
[( 603 - 254 ) ÷ 254] x 100 = 137.4%
Formula
Percentage change = [(603 - 254) / 254] x 100
Subtract the new number by the original number
603 - 254 = 349
349 ÷ 254 = 1.374015748031496
1.374015748031496 x 100 = 137.4%