-15.17% is the change from 389 to 330
Calculation steps:
[( 330 - 389 ) ÷ 389] x 100 = -15.17%
Formula
Percentage change = [(330 - 389) / 389] x 100
Subtract the new number by the original number
330 - 389 = -59
-59 ÷ 389 = -0.15167095115681234
-0.15167095115681234 x 100 = -15.17%