38.82% is the change from 389 to 540
Calculation steps:
[( 540 - 389 ) ÷ 389] x 100 = 38.82%
Formula
Percentage change = [(540 - 389) / 389] x 100
Subtract the new number by the original number
540 - 389 = 151
151 ÷ 389 = 0.38817480719794345
0.38817480719794345 x 100 = 38.82%