-12.85% is the change from 389 to 339
Calculation steps:
[( 339 - 389 ) ÷ 389] x 100 = -12.85%
Formula
Percentage change = [(339 - 389) / 389] x 100
Subtract the new number by the original number
339 - 389 = -50
-50 ÷ 389 = -0.12853470437017994
-0.12853470437017994 x 100 = -12.85%