-16.79% is the change from 393 to 327
Calculation steps:
[( 327 - 393 ) ÷ 393] x 100 = -16.79%
Formula
Percentage change = [(327 - 393) / 393] x 100
Subtract the new number by the original number
327 - 393 = -66
-66 ÷ 393 = -0.16793893129770993
-0.16793893129770993 x 100 = -16.79%