Verify that you have not duplicated information in either the T5008 screen ("Income" > "T-slips") or the Capital Gains area ("Investments" > "Capital Gains").
Net Capital Gains will be reported at half of the actual gain on Line 12700.
DETAILED SUMMARY:
To see a detailed summary of your return using TurboTax Online, click the first arrow below your estimated refund amount in the side panel, then select the option for View detailed tax summary. The Detailed Summary page will appear, giving you line-by-line information regarding your income and credits.