2733.33% is the change from 9 to 255
Calculation steps:
[( 255 - 9 ) ÷ 9] x 100 = 2733.33%
Formula
Percentage change = [(255 - 9) / 9] x 100
Subtract the new number by the original number
255 - 9 = 246
246 ÷ 9 = 27.333333333333332
27.333333333333332 x 100 = 2733.33%