246.48% is the change from 256 to 887
Calculation steps:
[( 887 - 256 ) ÷ 256] x 100 = 246.48%
Formula
Percentage change = [(887 - 256) / 256] x 100
Subtract the new number by the original number
887 - 256 = 631
631 ÷ 256 = 2.46484375
2.46484375 x 100 = 246.48%