Conditional Formatting

Hi,
I have a report as such:


dataset:

select s.supplier, i.item, p.price, i.[type],i.origin,i.unit

from pricelist p,item i,suppliers s

where p.item = i.pkey and p.supplier = s.pkey


and a matrix that has
row groups; item,type,origin,unit
column groups : supplier
and price as detail.

this has been achieved

example:





freshegg bestdeal freshmarket
Eggs small lo ea 1 2 2

now i want minimum price to be highlighted.

the minimum price on that row to be for example red.
I am currently trying in color properties set it like this:

=IIf(Fields!price.Value = Min(Fields!price.Value, "matrix1_unit"),"DarkRed","Black")
where matrix1_unit is the last row group,
but this is not working right,

Anyone has some directions?
thanks.