-98.03% is the change from 861 to 17
Calculation steps:
[( 17 - 861 ) ÷ 861] x 100 = -98.03%
Formula
Percentage change = [(17 - 861) / 861] x 100
Subtract the new number by the original number
17 - 861 = -844
-844 ÷ 861 = -0.9802555168408827
-0.9802555168408827 x 100 = -98.03%