First, create a query to find all Volunteer Hour entries.
  1. Click Queries
  2. Click Manage Queries
  3. Select a category that you want to store this query in (Ex: Base)
  4. Click New Query under the tasks menu
  5. Name the query Volunteer Hours
  6. Set the Starting Query to Base/All Constituents
  7. Under Results, set the Data Return Type to Journal Entries
  8. Under Criteria Options mark Match each criteria
  9. Under Browse Fields select Defined Fields from the drop down menu and click on Contact Methods
  10. Select Volunteer Hours
  11. Save and Run Report

Next, create a report to show each volunteer occurrence with a total number of hours for each account.
  1. Select a Category to store this report in (Ex: System)
  2. Click New Report under Tasks
  3. Name your report Volunteer Hours
  4. Under Group Results, select to Group Report By Accounts and Show Group Totals
  5. Under Browse Fields, select Commonly Used Fields in the drop down menu and click Account Name and Date
  6. Select User Defined Fields: Journal under Browse Fields and click Volunteer Hours
  7. Click Save and Run
  8. Select your Volunteer Hours query
  9. At the bottom of the page select a Delivery Option and then click Submit