108.23% is the change from 389 to 810
Calculation steps:
[( 810 - 389 ) ÷ 389] x 100 = 108.23%
Formula
Percentage change = [(810 - 389) / 389] x 100
Subtract the new number by the original number
810 - 389 = 421
421 ÷ 389 = 1.082262210796915
1.082262210796915 x 100 = 108.23%