-22.12% is the change from 104 to 81
Calculation steps:
[( 81 - 104 ) ÷ 104] x 100 = -22.12%
Formula
Percentage change = [(81 - 104) / 104] x 100
Subtract the new number by the original number
81 - 104 = -23
-23 ÷ 104 = -0.22115384615384615
-0.22115384615384615 x 100 = -22.12%