-9.89% is the change from 718 to 647
Calculation steps:
[( 647 - 718 ) ÷ 718] x 100 = -9.89%
Formula
Percentage change = [(647 - 718) / 718] x 100
Subtract the new number by the original number
647 - 718 = -71
-71 ÷ 718 = -0.0988857938718663
-0.0988857938718663 x 100 = -9.89%