-97.89% is the change from 710 to 15
Calculation steps:
[( 15 - 710 ) ÷ 710] x 100 = -97.89%
Formula
Percentage change = [(15 - 710) / 710] x 100
Subtract the new number by the original number
15 - 710 = -695
-695 ÷ 710 = -0.9788732394366197
-0.9788732394366197 x 100 = -97.89%