36.5% is the change from 389 to 531
Calculation steps:
[( 531 - 389 ) ÷ 389] x 100 = 36.5%
Formula
Percentage change = [(531 - 389) / 389] x 100
Subtract the new number by the original number
531 - 389 = 142
142 ÷ 389 = 0.36503856041131105
0.36503856041131105 x 100 = 36.5%