85.1% is the change from 255 to 472
Calculation steps:
[( 472 - 255 ) ÷ 255] x 100 = 85.1%
Formula
Percentage change = [(472 - 255) / 255] x 100
Subtract the new number by the original number
472 - 255 = 217
217 ÷ 255 = 0.8509803921568627
0.8509803921568627 x 100 = 85.1%