-82.86% is the change from 391 to 67
Calculation steps:
[( 67 - 391 ) ÷ 391] x 100 = -82.86%
Formula
Percentage change = [(67 - 391) / 391] x 100
Subtract the new number by the original number
67 - 391 = -324
-324 ÷ 391 = -0.8286445012787724
-0.8286445012787724 x 100 = -82.86%