9.87% is the change from 233 to 256
Calculation steps:
[( 256 - 233 ) ÷ 233] x 100 = 9.87%
Formula
Percentage change = [(256 - 233) / 233] x 100
Subtract the new number by the original number
256 - 233 = 23
23 ÷ 233 = 0.09871244635193133
0.09871244635193133 x 100 = 9.87%