89.06% is the change from 256 to 484
Calculation steps:
[( 484 - 256 ) ÷ 256] x 100 = 89.06%
Formula
Percentage change = [(484 - 256) / 256] x 100
Subtract the new number by the original number
484 - 256 = 228
228 ÷ 256 = 0.890625
0.890625 x 100 = 89.06%