9.79% is the change from 235 to 258
Calculation steps:
[( 258 - 235 ) ÷ 235] x 100 = 9.79%
Formula
Percentage change = [(258 - 235) / 235] x 100
Subtract the new number by the original number
258 - 235 = 23
23 ÷ 235 = 0.09787234042553192
0.09787234042553192 x 100 = 9.79%