-8.31% is the change from 770 to 706
Calculation steps:
[( 706 - 770 ) ÷ 770] x 100 = -8.31%
Formula
Percentage change = [(706 - 770) / 770] x 100
Subtract the new number by the original number
706 - 770 = -64
-64 ÷ 770 = -0.08311688311688312
-0.08311688311688312 x 100 = -8.31%