-98.79% is the change from 743 to 9
Calculation steps:
[( 9 - 743 ) ÷ 743] x 100 = -98.79%
Formula
Percentage change = [(9 - 743) / 743] x 100
Subtract the new number by the original number
9 - 743 = -734
-734 ÷ 743 = -0.9878869448183042
-0.9878869448183042 x 100 = -98.79%