-97.98% is the change from 744 to 15
Calculation steps:
[( 15 - 744 ) ÷ 744] x 100 = -97.98%
Formula
Percentage change = [(15 - 744) / 744] x 100
Subtract the new number by the original number
15 - 744 = -729
-729 ÷ 744 = -0.9798387096774194
-0.9798387096774194 x 100 = -97.98%