-86.15% is the change from 715 to 99
Calculation steps:
[( 99 - 715 ) ÷ 715] x 100 = -86.15%
Formula
Percentage change = [(99 - 715) / 715] x 100
Subtract the new number by the original number
99 - 715 = -616
-616 ÷ 715 = -0.8615384615384616
-0.8615384615384616 x 100 = -86.15%