378.57% is the change from 126 to 603
Calculation steps:
[( 603 - 126 ) ÷ 126] x 100 = 378.57%
Formula
Percentage change = [(603 - 126) / 126] x 100
Subtract the new number by the original number
603 - 126 = 477
477 ÷ 126 = 3.7857142857142856
3.7857142857142856 x 100 = 378.57%