265.1% is the change from 255 to 931
Calculation steps:
[( 931 - 255 ) ÷ 255] x 100 = 265.1%
Formula
Percentage change = [(931 - 255) / 255] x 100
Subtract the new number by the original number
931 - 255 = 676
676 ÷ 255 = 2.6509803921568627
2.6509803921568627 x 100 = 265.1%