-97.65% is the change from 85 to 2
Calculation steps:
[( 2 - 85 ) ÷ 85] x 100 = -97.65%
Formula
Percentage change = [(2 - 85) / 85] x 100
Subtract the new number by the original number
2 - 85 = -83
-83 ÷ 85 = -0.9764705882352941
-0.9764705882352941 x 100 = -97.65%