how to make the field to be bold when another field of a workarea in the table has sub total.

Hi Everyone,

I have a subform in that table having 5 to 6 fields when I am placing cursor on the PRICE i have to refer the UOM1 field. means if UOM1 = "Sub total"

then font.weight should be "bold".Please find the screen shot below.

Please find the another screen shot where i need to make the price in front of the Subtotal to be bold.

I have to make $3124 to be bold. Please help as soon as possible.