-54.95% is the change from 717 to 323
Calculation steps:
[( 323 - 717 ) ÷ 717] x 100 = -54.95%
Formula
Percentage change = [(323 - 717) / 717] x 100
Subtract the new number by the original number
323 - 717 = -394
-394 ÷ 717 = -0.5495118549511855
-0.5495118549511855 x 100 = -54.95%