-55.65% is the change from 717 to 318
Calculation steps:
[( 318 - 717 ) ÷ 717] x 100 = -55.65%
Formula
Percentage change = [(318 - 717) / 717] x 100
Subtract the new number by the original number
318 - 717 = -399
-399 ÷ 717 = -0.5564853556485355
-0.5564853556485355 x 100 = -55.65%