-8.83% is the change from 770 to 702
Calculation steps:
[( 702 - 770 ) ÷ 770] x 100 = -8.83%
Formula
Percentage change = [(702 - 770) / 770] x 100
Subtract the new number by the original number
702 - 770 = -68
-68 ÷ 770 = -0.08831168831168831
-0.08831168831168831 x 100 = -8.83%