-17.31% is the change from 104 to 86
Calculation steps:
[( 86 - 104 ) ÷ 104] x 100 = -17.31%
Formula
Percentage change = [(86 - 104) / 104] x 100
Subtract the new number by the original number
86 - 104 = -18
-18 ÷ 104 = -0.17307692307692307
-0.17307692307692307 x 100 = -17.31%