128.71% is the change from 310 to 709
Calculation steps:
[( 709 - 310 ) ÷ 310] x 100 = 128.71%
Formula
Percentage change = [(709 - 310) / 310] x 100
Subtract the new number by the original number
709 - 310 = 399
399 ÷ 310 = 1.2870967741935484
1.2870967741935484 x 100 = 128.71%