30.64% is the change from 235 to 307
Calculation steps:
[( 307 - 235 ) ÷ 235] x 100 = 30.64%
Formula
Percentage change = [(307 - 235) / 235] x 100
Subtract the new number by the original number
307 - 235 = 72
72 ÷ 235 = 0.30638297872340425
0.30638297872340425 x 100 = 30.64%