The top of Subtotal dialog box displays the subaccount to be subtotalled. Defining a subaccount as a Subtotal turns the account into a calculated account.
To create a subtotals:
On the Accounts view or Report view, select the account to subtotal.
Subtotal Starting after Previous or Main Account — Adds the subaccounts listed above it in All Subaccounts until reaching another subtotal or main account.
Subtotal Starting at Subaccount — Designates a subaccount number to being the subtotal. Enter the subaccount number in the input box or click the arrow buttons to select.