256.78% is the change from 273 to 974
Calculation steps:
[( 974 - 273 ) ÷ 273] x 100 = 256.78%
Formula
Percentage change = [(974 - 273) / 273] x 100
Subtract the new number by the original number
974 - 273 = 701
701 ÷ 273 = 2.567765567765568
2.567765567765568 x 100 = 256.78%