unit price on report builder isn't work

in the report builder, i chose unit price.
it lets me choose the unit of measure

i picked sales UoM

but it doesn't work.

in the report it still shows.   unit price is still base UoM

Qty. Sold Unit Price Total Revenue
1           $2.53          $30.30


it should be showing 30.30, not 2.53 if i changed my unit of measure to match my sales uom

my qty sold is 1dz, which is my sales unit of measure.
inside the transaction record it shows

qty   uom    price level    rate
1        DZ        custom       30.30