-86.21% is the change from 718 to 99
Calculation steps:
[( 99 - 718 ) ÷ 718] x 100 = -86.21%
Formula
Percentage change = [(99 - 718) / 718] x 100
Subtract the new number by the original number
99 - 718 = -619
-619 ÷ 718 = -0.862116991643454
-0.862116991643454 x 100 = -86.21%