209.35% is the change from 310 to 959
Calculation steps:
[( 959 - 310 ) ÷ 310] x 100 = 209.35%
Formula
Percentage change = [(959 - 310) / 310] x 100
Subtract the new number by the original number
959 - 310 = 649
649 ÷ 310 = 2.0935483870967744
2.0935483870967744 x 100 = 209.35%