Go to your Lists menu, chart of accounts, the checking account in question.
Right click to run Quick Report. Customize first for date, then filter transaction type. If they are all checks, select just checks as type, if additional deduction types select multiple and choose all that matter. This will give you a list of all deductions within the timefrane and a total at the bottom. Numbers will all be negative since they are deductions. You can save this customized report for use again with just having to edit dates as needed