-12.6% is the change from 389 to 340
Calculation steps:
[( 340 - 389 ) ÷ 389] x 100 = -12.6%
Formula
Percentage change = [(340 - 389) / 389] x 100
Subtract the new number by the original number
340 - 389 = -49
-49 ÷ 389 = -0.12596401028277635
-0.12596401028277635 x 100 = -12.6%