7.73% is the change from 233 to 251
Calculation steps:
[( 251 - 233 ) ÷ 233] x 100 = 7.73%
Formula
Percentage change = [(251 - 233) / 233] x 100
Subtract the new number by the original number
251 - 233 = 18
18 ÷ 233 = 0.07725321888412018
0.07725321888412018 x 100 = 7.73%