-97.96% is the change from 737 to 15
Calculation steps:
[( 15 - 737 ) ÷ 737] x 100 = -97.96%
Formula
Percentage change = [(15 - 737) / 737] x 100
Subtract the new number by the original number
15 - 737 = -722
-722 ÷ 737 = -0.9796472184531886
-0.9796472184531886 x 100 = -97.96%