9.44% is the change from 233 to 255
Calculation steps:
[( 255 - 233 ) ÷ 233] x 100 = 9.44%
Formula
Percentage change = [(255 - 233) / 233] x 100
Subtract the new number by the original number
255 - 233 = 22
22 ÷ 233 = 0.0944206008583691
0.0944206008583691 x 100 = 9.44%