31.76% is the change from 233 to 307
Calculation steps:
[( 307 - 233 ) ÷ 233] x 100 = 31.76%
Formula
Percentage change = [(307 - 233) / 233] x 100
Subtract the new number by the original number
307 - 233 = 74
74 ÷ 233 = 0.31759656652360513
0.31759656652360513 x 100 = 31.76%