31.62% is the change from 389 to 512
Calculation steps:
[( 512 - 389 ) ÷ 389] x 100 = 31.62%
Formula
Percentage change = [(512 - 389) / 389] x 100
Subtract the new number by the original number
512 - 389 = 123
123 ÷ 389 = 0.3161953727506427
0.3161953727506427 x 100 = 31.62%