120% is the change from 310 to 682
Calculation steps:
[( 682 - 310 ) ÷ 310] x 100 = 120%
Formula
Percentage change = [(682 - 310) / 310] x 100
Subtract the new number by the original number
682 - 310 = 372
372 ÷ 310 = 1.2
1.2 x 100 = 120%
Example