-99.88% is the change from 863 to 1
Calculation steps:
[( 1 - 863 ) ÷ 863] x 100 = -99.88%
Formula
Percentage change = [(1 - 863) / 863] x 100
Subtract the new number by the original number
1 - 863 = -862
-862 ÷ 863 = -0.9988412514484357
-0.9988412514484357 x 100 = -99.88%