-98.8% is the change from 750 to 9
Calculation steps:
[( 9 - 750 ) ÷ 750] x 100 = -98.8%
Formula
Percentage change = [(9 - 750) / 750] x 100
Subtract the new number by the original number
9 - 750 = -741
-741 ÷ 750 = -0.988
-0.988 x 100 = -98.8%
Example