-4.18% is the change from 717 to 687
Calculation steps:
[( 687 - 717 ) ÷ 717] x 100 = -4.18%
Formula
Percentage change = [(687 - 717) / 717] x 100
Subtract the new number by the original number
687 - 717 = -30
-30 ÷ 717 = -0.04184100418410042
-0.04184100418410042 x 100 = -4.18%