241.02% is the change from 256 to 873
Calculation steps:
[( 873 - 256 ) ÷ 256] x 100 = 241.02%
Formula
Percentage change = [(873 - 256) / 256] x 100
Subtract the new number by the original number
873 - 256 = 617
617 ÷ 256 = 2.41015625
2.41015625 x 100 = 241.02%