Hide Grand Total but keep totals in Report

Hide Grand Total but keep totals in Report

Hi there,

I have a report which contains prices comparisons, which are grouped by suppliers/contract terms/... and I set up price totals for each group, which is what I want. However, in the report, I keep on getting a Grand Total on the bottom line, which I don't want as the purpose of my report is to give my client the opportunity to compare prices between different suppliers, so the Grand Total does not mean anything and need to be removed.
Any advice on how to do that? 

 Thanks

Maud