-98.79% is the change from 742 to 9
Calculation steps:
[( 9 - 742 ) ÷ 742] x 100 = -98.79%
Formula
Percentage change = [(9 - 742) / 742] x 100
Subtract the new number by the original number
9 - 742 = -733
-733 ÷ 742 = -0.9878706199460916
-0.9878706199460916 x 100 = -98.79%