-89.53% is the change from 774 to 81
Calculation steps:
[( 81 - 774 ) ÷ 774] x 100 = -89.53%
Formula
Percentage change = [(81 - 774) / 774] x 100
Subtract the new number by the original number
81 - 774 = -693
-693 ÷ 774 = -0.8953488372093024
-0.8953488372093024 x 100 = -89.53%