109% is the change from 389 to 813
Calculation steps:
[( 813 - 389 ) ÷ 389] x 100 = 109%
Formula
Percentage change = [(813 - 389) / 389] x 100
Subtract the new number by the original number
813 - 389 = 424
424 ÷ 389 = 1.0899742930591259
1.0899742930591259 x 100 = 109%