-8.62% is the change from 731 to 668
Calculation steps:
[( 668 - 731 ) ÷ 731] x 100 = -8.62%
Formula
Percentage change = [(668 - 731) / 731] x 100
Subtract the new number by the original number
668 - 731 = -63
-63 ÷ 731 = -0.08618331053351573
-0.08618331053351573 x 100 = -8.62%