174.07% is the change from 270 to 740
Calculation steps:
[( 740 - 270 ) ÷ 270] x 100 = 174.07%
Formula
Percentage change = [(740 - 270) / 270] x 100
Subtract the new number by the original number
740 - 270 = 470
470 ÷ 270 = 1.7407407407407407
1.7407407407407407 x 100 = 174.07%