-5.65% is the change from 708 to 668
Calculation steps:
[( 668 - 708 ) ÷ 708] x 100 = -5.65%
Formula
Percentage change = [(668 - 708) / 708] x 100
Subtract the new number by the original number
668 - 708 = -40
-40 ÷ 708 = -0.05649717514124294
-0.05649717514124294 x 100 = -5.65%