-9.24% is the change from 714 to 648
Calculation steps:
[( 648 - 714 ) ÷ 714] x 100 = -9.24%
Formula
Percentage change = [(648 - 714) / 714] x 100
Subtract the new number by the original number
648 - 714 = -66
-66 ÷ 714 = -0.09243697478991597
-0.09243697478991597 x 100 = -9.24%