-6.74% is the change from 712 to 664
Calculation steps:
[( 664 - 712 ) ÷ 712] x 100 = -6.74%
Formula
Percentage change = [(664 - 712) / 712] x 100
Subtract the new number by the original number
664 - 712 = -48
-48 ÷ 712 = -0.06741573033707865
-0.06741573033707865 x 100 = -6.74%