87.89% is the change from 256 to 481
Calculation steps:
[( 481 - 256 ) ÷ 256] x 100 = 87.89%
Formula
Percentage change = [(481 - 256) / 256] x 100
Subtract the new number by the original number
481 - 256 = 225
225 ÷ 256 = 0.87890625
0.87890625 x 100 = 87.89%