-6.97% is the change from 717 to 667
Calculation steps:
[( 667 - 717 ) ÷ 717] x 100 = -6.97%
Formula
Percentage change = [(667 - 717) / 717] x 100
Subtract the new number by the original number
667 - 717 = -50
-50 ÷ 717 = -0.0697350069735007
-0.0697350069735007 x 100 = -6.97%