-16.88% is the change from 391 to 325
Calculation steps:
[( 325 - 391 ) ÷ 391] x 100 = -16.88%
Formula
Percentage change = [(325 - 391) / 391] x 100
Subtract the new number by the original number
325 - 391 = -66
-66 ÷ 391 = -0.16879795396419436
-0.16879795396419436 x 100 = -16.88%