-89.52% is the change from 773 to 81
Calculation steps:
[( 81 - 773 ) ÷ 773] x 100 = -89.52%
Formula
Percentage change = [(81 - 773) / 773] x 100
Subtract the new number by the original number
81 - 773 = -692
-692 ÷ 773 = -0.8952134540750324
-0.8952134540750324 x 100 = -89.52%