Crystal Reports - subtotal for group header -

i need subtotals.

what have:

a report 3 groups, report shows receipts per month. showing fine relevant details , shows receipts done on dates. report showing this:

these fields in receipt# group header , showing need when add subtotal show every receipt, want report subtotal this:

i have tried moving these fields receipt date group not work gives me subtotal each date , don't see receipts date.

it might small missing stumped.

i hope making sense here, if not please let me know , try best clarify.

thanks.

remove receipt# group , add date group inplace of receipt.. , place receipt# under details group.