-88.75% is the change from 773 to 87
Calculation steps:
[( 87 - 773 ) ÷ 773] x 100 = -88.75%
Formula
Percentage change = [(87 - 773) / 773] x 100
Subtract the new number by the original number
87 - 773 = -686
-686 ÷ 773 = -0.88745148771022
-0.88745148771022 x 100 = -88.75%