You can check your credit usage by:
1. Click your account name in the corner
2. Go to Settings > Credit usage
3. In the Workspace section, you'll see folders, workbooks, and tables sorted by usage
You can sort by Name or Credits used, and filter by time period, owner, or integration. This will help you identify what consumed your 10, 000 credits.
For column-specific usage, right-click on a column and select "Run Info" to see credits spent on just that column.