265.63% is the change from 256 to 936
Calculation steps:
[( 936 - 256 ) ÷ 256] x 100 = 265.63%
Formula
Percentage change = [(936 - 256) / 256] x 100
Subtract the new number by the original number
936 - 256 = 680
680 ÷ 256 = 2.65625
2.65625 x 100 = 265.63%