140% is the change from 310 to 744
Calculation steps:
[( 744 - 310 ) ÷ 310] x 100 = 140%
Formula
Percentage change = [(744 - 310) / 310] x 100
Subtract the new number by the original number
744 - 310 = 434
434 ÷ 310 = 1.4
1.4 x 100 = 140%
Example