-98.77% is the change from 730 to 9
Calculation steps:
[( 9 - 730 ) ÷ 730] x 100 = -98.77%
Formula
Percentage change = [(9 - 730) / 730] x 100
Subtract the new number by the original number
9 - 730 = -721
-721 ÷ 730 = -0.9876712328767123
-0.9876712328767123 x 100 = -98.77%