-99.65% is the change from 855 to 3
Calculation steps:
[( 3 - 855 ) ÷ 855] x 100 = -99.65%
Formula
Percentage change = [(3 - 855) / 855] x 100
Subtract the new number by the original number
3 - 855 = -852
-852 ÷ 855 = -0.9964912280701754
-0.9964912280701754 x 100 = -99.65%