-97.91% is the change from 718 to 15
Calculation steps:
[( 15 - 718 ) ÷ 718] x 100 = -97.91%
Formula
Percentage change = [(15 - 718) / 718] x 100
Subtract the new number by the original number
15 - 718 = -703
-703 ÷ 718 = -0.979108635097493
-0.979108635097493 x 100 = -97.91%