-9% is the change from 778 to 708
Calculation steps:
[( 708 - 778 ) ÷ 778] x 100 = -9%
Formula
Percentage change = [(708 - 778) / 778] x 100
Subtract the new number by the original number
708 - 778 = -70
-70 ÷ 778 = -0.08997429305912596
-0.08997429305912596 x 100 = -9%