-88.41% is the change from 699 to 81
Calculation steps:
[( 81 - 699 ) ÷ 699] x 100 = -88.41%
Formula
Percentage change = [(81 - 699) / 699] x 100
Subtract the new number by the original number
81 - 699 = -618
-618 ÷ 699 = -0.8841201716738197
-0.8841201716738197 x 100 = -88.41%