219.17% is the change from 313 to 999
Calculation steps:
[( 999 - 313 ) ÷ 313] x 100 = 219.17%
Formula
Percentage change = [(999 - 313) / 313] x 100
Subtract the new number by the original number
999 - 313 = 686
686 ÷ 313 = 2.191693290734824
2.191693290734824 x 100 = 219.17%