-93.83% is the change from 81 to 5
Calculation steps:
[( 5 - 81 ) ÷ 81] x 100 = -93.83%
Formula
Percentage change = [(5 - 81) / 81] x 100
Subtract the new number by the original number
5 - 81 = -76
-76 ÷ 81 = -0.9382716049382716
-0.9382716049382716 x 100 = -93.83%