-89.38% is the change from 763 to 81
Calculation steps:
[( 81 - 763 ) ÷ 763] x 100 = -89.38%
Formula
Percentage change = [(81 - 763) / 763] x 100
Subtract the new number by the original number
81 - 763 = -682
-682 ÷ 763 = -0.8938401048492791
-0.8938401048492791 x 100 = -89.38%