-99.86% is the change from 728 to 1
Calculation steps:
[( 1 - 728 ) ÷ 728] x 100 = -99.86%
Formula
Percentage change = [(1 - 728) / 728] x 100
Subtract the new number by the original number
1 - 728 = -727
-727 ÷ 728 = -0.9986263736263736
-0.9986263736263736 x 100 = -99.86%