258.97% is the change from 273 to 980
Calculation steps:
[( 980 - 273 ) ÷ 273] x 100 = 258.97%
Formula
Percentage change = [(980 - 273) / 273] x 100
Subtract the new number by the original number
980 - 273 = 707
707 ÷ 273 = 2.58974358974359
2.58974358974359 x 100 = 258.97%