33.05% is the change from 233 to 310
Calculation steps:
[( 310 - 233 ) ÷ 233] x 100 = 33.05%
Formula
Percentage change = [(310 - 233) / 233] x 100
Subtract the new number by the original number
310 - 233 = 77
77 ÷ 233 = 0.33047210300429186
0.33047210300429186 x 100 = 33.05%