242.19% is the change from 256 to 876
Calculation steps:
[( 876 - 256 ) ÷ 256] x 100 = 242.19%
Formula
Percentage change = [(876 - 256) / 256] x 100
Subtract the new number by the original number
876 - 256 = 620
620 ÷ 256 = 2.421875
2.421875 x 100 = 242.19%