-66.46% is the change from 978 to 328
Calculation steps:
[( 328 - 978 ) ÷ 978] x 100 = -66.46%
Formula
Percentage change = [(328 - 978) / 978] x 100
Subtract the new number by the original number
328 - 978 = -650
-650 ÷ 978 = -0.6646216768916156
-0.6646216768916156 x 100 = -66.46%