-98.02% is the change from 859 to 17
Calculation steps:
[( 17 - 859 ) ÷ 859] x 100 = -98.02%
Formula
Percentage change = [(17 - 859) / 859] x 100
Subtract the new number by the original number
17 - 859 = -842
-842 ÷ 859 = -0.980209545983702
-0.980209545983702 x 100 = -98.02%