-97.89% is the change from 712 to 15
Calculation steps:
[( 15 - 712 ) ÷ 712] x 100 = -97.89%
Formula
Percentage change = [(15 - 712) / 712] x 100
Subtract the new number by the original number
15 - 712 = -697
-697 ÷ 712 = -0.9789325842696629
-0.9789325842696629 x 100 = -97.89%