-86% is the change from 707 to 99
Calculation steps:
[( 99 - 707 ) ÷ 707] x 100 = -86%
Formula
Percentage change = [(99 - 707) / 707] x 100
Subtract the new number by the original number
99 - 707 = -608
-608 ÷ 707 = -0.85997171145686
-0.85997171145686 x 100 = -86%