-55.79% is the change from 717 to 317
Calculation steps:
[( 317 - 717 ) ÷ 717] x 100 = -55.79%
Formula
Percentage change = [(317 - 717) / 717] x 100
Subtract the new number by the original number
317 - 717 = -400
-400 ÷ 717 = -0.5578800557880056
-0.5578800557880056 x 100 = -55.79%