-37.35% is the change from 166 to 104
Calculation steps:
[( 104 - 166 ) ÷ 166] x 100 = -37.35%
Formula
Percentage change = [(104 - 166) / 166] x 100
Subtract the new number by the original number
104 - 166 = -62
-62 ÷ 166 = -0.37349397590361444
-0.37349397590361444 x 100 = -37.35%