-16.84% is the change from 386 to 321
Calculation steps:
[( 321 - 386 ) ÷ 386] x 100 = -16.84%
Formula
Percentage change = [(321 - 386) / 386] x 100
Subtract the new number by the original number
321 - 386 = -65
-65 ÷ 386 = -0.16839378238341968
-0.16839378238341968 x 100 = -16.84%