93.55% is the change from 310 to 600
Calculation steps:
[( 600 - 310 ) ÷ 310] x 100 = 93.55%
Formula
Percentage change = [(600 - 310) / 310] x 100
Subtract the new number by the original number
600 - 310 = 290
290 ÷ 310 = 0.9354838709677419
0.9354838709677419 x 100 = 93.55%