-86.1% is the change from 712 to 99
Calculation steps:
[( 99 - 712 ) ÷ 712] x 100 = -86.1%
Formula
Percentage change = [(99 - 712) / 712] x 100
Subtract the new number by the original number
99 - 712 = -613
-613 ÷ 712 = -0.8609550561797753
-0.8609550561797753 x 100 = -86.1%