Pivot Table Subtotals

[sumsum]

Hello, Is there a way to have subtotals only on selected columns?
For example if I have the following colums/rows can I remove the subtotal from the Rate column?
I have used the "min" value for now so it doesn't add, but I rather it be blank.

Row Labels	Sum of Hours	Rate per hour	Total
Amanda	10	$25	$250
Jackie	25	$10	$250
Pat	30	$13	$390
Grand Total	65	$13	$890

[p45cal]

Perhaps Custom format that cell to:
;;;