20.82% is the change from 389 to 470
Calculation steps:
[( 470 - 389 ) ÷ 389] x 100 = 20.82%
Formula
Percentage change = [(470 - 389) / 389] x 100
Subtract the new number by the original number
470 - 389 = 81
81 ÷ 389 = 0.20822622107969152
0.20822622107969152 x 100 = 20.82%