126.69% is the change from 266 to 603
Calculation steps:
[( 603 - 266 ) ÷ 266] x 100 = 126.69%
Formula
Percentage change = [(603 - 266) / 266] x 100
Subtract the new number by the original number
603 - 266 = 337
337 ÷ 266 = 1.2669172932330828
1.2669172932330828 x 100 = 126.69%