-96.34% is the change from 328 to 12
Calculation steps:
[( 12 - 328 ) ÷ 328] x 100 = -96.34%
Formula
Percentage change = [(12 - 328) / 328] x 100
Subtract the new number by the original number
12 - 328 = -316
-316 ÷ 328 = -0.9634146341463414
-0.9634146341463414 x 100 = -96.34%