249.22% is the change from 256 to 894
Calculation steps:
[( 894 - 256 ) ÷ 256] x 100 = 249.22%
Formula
Percentage change = [(894 - 256) / 256] x 100
Subtract the new number by the original number
894 - 256 = 638
638 ÷ 256 = 2.4921875
2.4921875 x 100 = 249.22%