-99.42% is the change from 857 to 5
Calculation steps:
[( 5 - 857 ) ÷ 857] x 100 = -99.42%
Formula
Percentage change = [(5 - 857) / 857] x 100
Subtract the new number by the original number
5 - 857 = -852
-852 ÷ 857 = -0.9941656942823804
-0.9941656942823804 x 100 = -99.42%