-99.86% is the change from 720 to 1
Calculation steps:
[( 1 - 720 ) ÷ 720] x 100 = -99.86%
Formula
Percentage change = [(1 - 720) / 720] x 100
Subtract the new number by the original number
1 - 720 = -719
-719 ÷ 720 = -0.9986111111111111
-0.9986111111111111 x 100 = -99.86%