-28.39% is the change from 546 to 391
Calculation steps:
[( 391 - 546 ) ÷ 546] x 100 = -28.39%
Formula
Percentage change = [(391 - 546) / 546] x 100
Subtract the new number by the original number
391 - 546 = -155
-155 ÷ 546 = -0.2838827838827839
-0.2838827838827839 x 100 = -28.39%