310.83% is the change from 120 to 493
Calculation steps:
[( 493 - 120 ) ÷ 120] x 100 = 310.83%
Formula
Percentage change = [(493 - 120) / 120] x 100
Subtract the new number by the original number
493 - 120 = 373
373 ÷ 120 = 3.1083333333333334
3.1083333333333334 x 100 = 310.83%