1. Ribbon > Insert > Table > Breakage.
2. In new table, right-click Cost column header > Show trend chart of 'Cost'.
3. Below trend chart, click: Add to report.
4. Right-click added chart, then: Copy to clipboard.
5. Paste from clipboard.
6. Right-click pasted chart, then: Show as table.
7. Below trend table, click: Add to report.
Now your report has both a table and chart showing Cost trended over time.