24.6% is the change from 313 to 390
Calculation steps:
[( 390 - 313 ) ÷ 313] x 100 = 24.6%
Formula
Percentage change = [(390 - 313) / 313] x 100
Subtract the new number by the original number
390 - 313 = 77
77 ÷ 313 = 0.24600638977635783
0.24600638977635783 x 100 = 24.6%