-18.51% is the change from 389 to 317
Calculation steps:
[( 317 - 389 ) ÷ 389] x 100 = -18.51%
Formula
Percentage change = [(317 - 389) / 389] x 100
Subtract the new number by the original number
317 - 389 = -72
-72 ÷ 389 = -0.18508997429305912
-0.18508997429305912 x 100 = -18.51%