4150% is the change from 6 to 255
Calculation steps:
[( 255 - 6 ) ÷ 6] x 100 = 4150%
Formula
Percentage change = [(255 - 6) / 6] x 100
Subtract the new number by the original number
255 - 6 = 249
249 ÷ 6 = 41.5
41.5 x 100 = 4150%
Example