Approximation Error In Steem Power Calculation

I have been surfing through the new tool developed by @emrebeyler. That is Steem.rocks, a website that shows the activity feed for a Steem account all in one place. The website shows what ever happens in an account within the Steem Blockchain. It shows both actions by a user and actions received.

Homepage of Steemit.rocks

Since it is an open source project, contributions are accepted. While going through the site, I discovered it had an approximation error. Approximation error is defined as the deviation between the exact value of a data and its approximated value is referred to an approximation error. In this case the approximation error has to deal with the calculation of my Steem Power. My Steem Power was said to be 172 SP on the Steem.rocks website, while in reality it was over 172.5 SP.

For clarification, let's go through what I have just said with images/screenshots.

The image above shows the Steem.rocks website. Here it can be seen that my SP is said to be 172.
But from the calculations shown there: 145.17 + 27.74 - 0.00 = 172.91
172.91 is not equal to 172, nor can it be approximated to 172.

I compared with two other websites Steemd.com and Steemnow.com.

This is the image from Steemd.com. Here it can be seen that my Steem Power is approximated correctly. As seen from the image 145.17 + 27.74 - 0.00 = 172.91, approximately 173 SP. The approximation here is correct.

This is the image from Steemnow.com. Here you can see, the value is not approximated. It gives the complete value, 172.914 SP.

NOTE: Steemdb.com is different from Steemd.com.

CONCLUSION

Thanks @emrebeyler, for working on a great tool. I commend him for looking at the voting power issue I raised earlier today, perhaps the reason I am still contributing now.

SUGGESTION

I do not think this approximation error has anything to do with RPC nodes, since that is what is usually responsible for variations in some values. I am no developer, so I may be wrong but I would suggest you look into this approximation error for accurate Steem Power calculation. You can choose to either approximate the valuse correctly or give the complete figures like Steemnow.com.

Additional information

I used Samsung default browser to access the website on my Samsung Galaxy Phone. All inages/screenshots uploaded were taken with my phone.

Open Source Contribution posted via Utopian.io