Your Steem Power is 9.078 Steem currently, when you reach 50 your vote will be $0.01, although I warn you that giving that is not very accommodating lol...
But with the pace and quality of your publications it will be quite easy for you to reach that number, probably this month, if you don't do Power Down before.
Edit: If you enter Steem Now you can know your voting power, if you click on the small calculator you can know how much you need to give a vote of X dollars.
Thank you very much for the explanation and the link! I would upvote your comment, but... :D
Do you happen to know does my current upvote give any value (for example $0.002) to the author, although it's too small to be shown in the two-digits format?
That is exactly what happens, as your vote is less than $0.01, then it is shown as $ 0.00, but it has a minimum value, that is, from $0.001 to $0.009.
In fact, Steemit delegates an SP of $ 27 to create the account, for some reason you have only $ 12,617, maybe someone gave you a flag? Well, adding that with your 9 you get to 21,696 SP, which is enough to give a vote of $ 0.01, but only if you let your voting power recharge at least between 95% and 100%, to 94% you can not anymore.
Currently you have a voting power of 58%, if you can get the SP 50 that I told you, then you will get a vote of $ 0.01 having a votying power less than 50%.
Thanks again for the clarification @vieira, much appreciated!
I'm also confused by not having +27 SP as most new people do. I don't remember anyone flagging my posts, their value never really went down (apart from the standard, very minor fluctuations).
It says "Your delegation amount can fluctuate" in the wallet, but I can find no explanation about the possible reasons. Alas, it is what it is. Cheers! : )