-88.57% is the change from 770 to 88
Calculation steps:
[( 88 - 770 ) ÷ 770] x 100 = -88.57%
Formula
Percentage change = [(88 - 770) / 770] x 100
Subtract the new number by the original number
88 - 770 = -682
-682 ÷ 770 = -0.8857142857142857
-0.8857142857142857 x 100 = -88.57%