-97.93% is the change from 726 to 15
Calculation steps:
[( 15 - 726 ) ÷ 726] x 100 = -97.93%
Formula
Percentage change = [(15 - 726) / 726] x 100
Subtract the new number by the original number
15 - 726 = -711
-711 ÷ 726 = -0.9793388429752066
-0.9793388429752066 x 100 = -97.93%