-66.94% is the change from 992 to 328
Calculation steps:
[( 328 - 992 ) ÷ 992] x 100 = -66.94%
Formula
Percentage change = [(328 - 992) / 992] x 100
Subtract the new number by the original number
328 - 992 = -664
-664 ÷ 992 = -0.6693548387096774
-0.6693548387096774 x 100 = -66.94%