-6.21% is the change from 708 to 664
Calculation steps:
[( 664 - 708 ) ÷ 708] x 100 = -6.21%
Formula
Percentage change = [(664 - 708) / 708] x 100
Subtract the new number by the original number
664 - 708 = -44
-44 ÷ 708 = -0.062146892655367235
-0.062146892655367235 x 100 = -6.21%