-94.51% is the change from 91 to 5
Calculation steps:
[( 5 - 91 ) ÷ 91] x 100 = -94.51%
Formula
Percentage change = [(5 - 91) / 91] x 100
Subtract the new number by the original number
5 - 91 = -86
-86 ÷ 91 = -0.945054945054945
-0.945054945054945 x 100 = -94.51%