-66.32% is the change from 974 to 328
Calculation steps:
[( 328 - 974 ) ÷ 974] x 100 = -66.32%
Formula
Percentage change = [(328 - 974) / 974] x 100
Subtract the new number by the original number
328 - 974 = -646
-646 ÷ 974 = -0.6632443531827515
-0.6632443531827515 x 100 = -66.32%