-87.23% is the change from 799 to 102
Calculation steps:
[( 102 - 799 ) ÷ 799] x 100 = -87.23%
Formula
Percentage change = [(102 - 799) / 799] x 100
Subtract the new number by the original number
102 - 799 = -697
-697 ÷ 799 = -0.8723404255319149
-0.8723404255319149 x 100 = -87.23%