200.32% is the change from 310 to 931
Calculation steps:
[( 931 - 310 ) ÷ 310] x 100 = 200.32%
Formula
Percentage change = [(931 - 310) / 310] x 100
Subtract the new number by the original number
931 - 310 = 621
621 ÷ 310 = 2.003225806451613
2.003225806451613 x 100 = 200.32%