-97.93% is the change from 725 to 15
Calculation steps:
[( 15 - 725 ) ÷ 725] x 100 = -97.93%
Formula
Percentage change = [(15 - 725) / 725] x 100
Subtract the new number by the original number
15 - 725 = -710
-710 ÷ 725 = -0.9793103448275862
-0.9793103448275862 x 100 = -97.93%