-86.62% is the change from 770 to 103
Calculation steps:
[( 103 - 770 ) ÷ 770] x 100 = -86.62%
Formula
Percentage change = [(103 - 770) / 770] x 100
Subtract the new number by the original number
103 - 770 = -667
-667 ÷ 770 = -0.8662337662337662
-0.8662337662337662 x 100 = -86.62%