-9.21% is the change from 717 to 651
Calculation steps:
[( 651 - 717 ) ÷ 717] x 100 = -9.21%
Formula
Percentage change = [(651 - 717) / 717] x 100
Subtract the new number by the original number
651 - 717 = -66
-66 ÷ 717 = -0.09205020920502092
-0.09205020920502092 x 100 = -9.21%