10.87% is the change from 230 to 255
Calculation steps:
[( 255 - 230 ) ÷ 230] x 100 = 10.87%
Formula
Percentage change = [(255 - 230) / 230] x 100
Subtract the new number by the original number
255 - 230 = 25
25 ÷ 230 = 0.10869565217391304
0.10869565217391304 x 100 = 10.87%