-28.79% is the change from 389 to 277
Calculation steps:
[( 277 - 389 ) ÷ 389] x 100 = -28.79%
Formula
Percentage change = [(277 - 389) / 389] x 100
Subtract the new number by the original number
277 - 389 = -112
-112 ÷ 389 = -0.2879177377892031
-0.2879177377892031 x 100 = -28.79%