280.83% is the change from 240 to 914
Calculation steps:
[( 914 - 240 ) ÷ 240] x 100 = 280.83%
Formula
Percentage change = [(914 - 240) / 240] x 100
Subtract the new number by the original number
914 - 240 = 674
674 ÷ 240 = 2.808333333333333
2.808333333333333 x 100 = 280.83%