-99.03% is the change from 720 to 7
Calculation steps:
[( 7 - 720 ) ÷ 720] x 100 = -99.03%
Formula
Percentage change = [(7 - 720) / 720] x 100
Subtract the new number by the original number
7 - 720 = -713
-713 ÷ 720 = -0.9902777777777778
-0.9902777777777778 x 100 = -99.03%