-94.44% is the change from 90 to 5
Calculation steps:
[( 5 - 90 ) ÷ 90] x 100 = -94.44%
Formula
Percentage change = [(5 - 90) / 90] x 100
Subtract the new number by the original number
5 - 90 = -85
-85 ÷ 90 = -0.9444444444444444
-0.9444444444444444 x 100 = -94.44%