105.1% is the change from 255 to 523
Calculation steps:
[( 523 - 255 ) ÷ 255] x 100 = 105.1%
Formula
Percentage change = [(523 - 255) / 255] x 100
Subtract the new number by the original number
523 - 255 = 268
268 ÷ 255 = 1.0509803921568628
1.0509803921568628 x 100 = 105.1%