-99.89% is the change from 879 to 1
Calculation steps:
[( 1 - 879 ) ÷ 879] x 100 = -99.89%
Formula
Percentage change = [(1 - 879) / 879] x 100
Subtract the new number by the original number
1 - 879 = -878
-878 ÷ 879 = -0.9988623435722411
-0.9988623435722411 x 100 = -99.89%