-92.94% is the change from 85 to 6
Calculation steps:
[( 6 - 85 ) ÷ 85] x 100 = -92.94%
Formula
Percentage change = [(6 - 85) / 85] x 100
Subtract the new number by the original number
6 - 85 = -79
-79 ÷ 85 = -0.9294117647058824
-0.9294117647058824 x 100 = -92.94%