60.65% is the change from 310 to 498
Calculation steps:
[( 498 - 310 ) ÷ 310] x 100 = 60.65%
Formula
Percentage change = [(498 - 310) / 310] x 100
Subtract the new number by the original number
498 - 310 = 188
188 ÷ 310 = 0.6064516129032258
0.6064516129032258 x 100 = 60.65%