-97.88% is the change from 709 to 15
Calculation steps:
[( 15 - 709 ) ÷ 709] x 100 = -97.88%
Formula
Percentage change = [(15 - 709) / 709] x 100
Subtract the new number by the original number
15 - 709 = -694
-694 ÷ 709 = -0.9788434414668548
-0.9788434414668548 x 100 = -97.88%