63.5% is the change from 389 to 636
Calculation steps:
[( 636 - 389 ) ÷ 389] x 100 = 63.5%
Formula
Percentage change = [(636 - 389) / 389] x 100
Subtract the new number by the original number
636 - 389 = 247
247 ÷ 389 = 0.6349614395886889
0.6349614395886889 x 100 = 63.5%