-97.86% is the change from 702 to 15
Calculation steps:
[( 15 - 702 ) ÷ 702] x 100 = -97.86%
Formula
Percentage change = [(15 - 702) / 702] x 100
Subtract the new number by the original number
15 - 702 = -687
-687 ÷ 702 = -0.9786324786324786
-0.9786324786324786 x 100 = -97.86%