17.48% is the change from 389 to 457
Calculation steps:
[( 457 - 389 ) ÷ 389] x 100 = 17.48%
Formula
Percentage change = [(457 - 389) / 389] x 100
Subtract the new number by the original number
457 - 389 = 68
68 ÷ 389 = 0.17480719794344474
0.17480719794344474 x 100 = 17.48%