-86.99% is the change from 715 to 93
Calculation steps:
[( 93 - 715 ) ÷ 715] x 100 = -86.99%
Formula
Percentage change = [(93 - 715) / 715] x 100
Subtract the new number by the original number
93 - 715 = -622
-622 ÷ 715 = -0.8699300699300699
-0.8699300699300699 x 100 = -86.99%