-4.88% is the change from 328 to 312
Calculation steps:
[( 312 - 328 ) ÷ 328] x 100 = -4.88%
Formula
Percentage change = [(312 - 328) / 328] x 100
Subtract the new number by the original number
312 - 328 = -16
-16 ÷ 328 = -0.04878048780487805
-0.04878048780487805 x 100 = -4.88%