-79.88% is the change from 323 to 65
Calculation steps:
[( 65 - 323 ) ÷ 323] x 100 = -79.88%
Formula
Percentage change = [(65 - 323) / 323] x 100
Subtract the new number by the original number
65 - 323 = -258
-258 ÷ 323 = -0.7987616099071208
-0.7987616099071208 x 100 = -79.88%