-99.73% is the change from 730 to 2
Calculation steps:
[( 2 - 730 ) ÷ 730] x 100 = -99.73%
Formula
Percentage change = [(2 - 730) / 730] x 100
Subtract the new number by the original number
2 - 730 = -728
-728 ÷ 730 = -0.9972602739726028
-0.9972602739726028 x 100 = -99.73%