316.25% is the change from 240 to 999
Calculation steps:
[( 999 - 240 ) ÷ 240] x 100 = 316.25%
Formula
Percentage change = [(999 - 240) / 240] x 100
Subtract the new number by the original number
999 - 240 = 759
759 ÷ 240 = 3.1625
3.1625 x 100 = 316.25%