273.9% is the change from 249 to 931
Calculation steps:
[( 931 - 249 ) ÷ 249] x 100 = 273.9%
Formula
Percentage change = [(931 - 249) / 249] x 100
Subtract the new number by the original number
931 - 249 = 682
682 ÷ 249 = 2.7389558232931726
2.7389558232931726 x 100 = 273.9%