-97.88% is the change from 707 to 15
Calculation steps:
[( 15 - 707 ) ÷ 707] x 100 = -97.88%
Formula
Percentage change = [(15 - 707) / 707] x 100
Subtract the new number by the original number
15 - 707 = -692
-692 ÷ 707 = -0.9787835926449788
-0.9787835926449788 x 100 = -97.88%