-66.05% is the change from 966 to 328
Calculation steps:
[( 328 - 966 ) ÷ 966] x 100 = -66.05%
Formula
Percentage change = [(328 - 966) / 966] x 100
Subtract the new number by the original number
328 - 966 = -638
-638 ÷ 966 = -0.660455486542443
-0.660455486542443 x 100 = -66.05%