148.71% is the change from 310 to 771
Calculation steps:
[( 771 - 310 ) ÷ 310] x 100 = 148.71%
Formula
Percentage change = [(771 - 310) / 310] x 100
Subtract the new number by the original number
771 - 310 = 461
461 ÷ 310 = 1.4870967741935484
1.4870967741935484 x 100 = 148.71%