279.69% is the change from 256 to 972
Calculation steps:
[( 972 - 256 ) ÷ 256] x 100 = 279.69%
Formula
Percentage change = [(972 - 256) / 256] x 100
Subtract the new number by the original number
972 - 256 = 716
716 ÷ 256 = 2.796875
2.796875 x 100 = 279.69%