-89.47% is the change from 769 to 81
Calculation steps:
[( 81 - 769 ) ÷ 769] x 100 = -89.47%
Formula
Percentage change = [(81 - 769) / 769] x 100
Subtract the new number by the original number
81 - 769 = -688
-688 ÷ 769 = -0.8946684005201561
-0.8946684005201561 x 100 = -89.47%