Many features that you see in SGXcafe are requests made by users. I appreciate feedback and feature requests from users, and do my best to make it happen whenever possible. Therefore, if there is any feature that you wish to see in SGXcafe, feel free to let me know!
The new columns tell you how much dividends and P&L you have made from a particular stock or transaction on an annualized basis. I believe it would be useful in at least two situations:
1) For stocks that you have held for numerous years, you will be able to see the annualized dividends % and annualized P&L % that they are generating for you.
2) Having annualized dividends % and annualized P&L % would also allow you to compare various stocks that you might have held for different amounts of time more fairly.
I would love to hear how this new information helps you in your investment journey.