-10.04% is the change from 717 to 645
Calculation steps:
[( 645 - 717 ) ÷ 717] x 100 = -10.04%
Formula
Percentage change = [(645 - 717) / 717] x 100
Subtract the new number by the original number
645 - 717 = -72
-72 ÷ 717 = -0.100418410041841
-0.100418410041841 x 100 = -10.04%