-86.8% is the change from 773 to 102
Calculation steps:
[( 102 - 773 ) ÷ 773] x 100 = -86.8%
Formula
Percentage change = [(102 - 773) / 773] x 100
Subtract the new number by the original number
102 - 773 = -671
-671 ÷ 773 = -0.8680465717981889
-0.8680465717981889 x 100 = -86.8%