-15.86% is the change from 391 to 329
Calculation steps:
[( 329 - 391 ) ÷ 391] x 100 = -15.86%
Formula
Percentage change = [(329 - 391) / 391] x 100
Subtract the new number by the original number
329 - 391 = -62
-62 ÷ 391 = -0.1585677749360614
-0.1585677749360614 x 100 = -15.86%