I need help converting decimal converted thousands.. if that makes sense?

I have a book on wattpad, and it has 6.99k.. but it had 6.97k before I added on 11 more reads.. so how do I have 6.99k?

Would 6.99k mean 6,999? Would it mean 6,099? Either way, the calculation the app has done is off and in the case 6.99k means 6,999 it should show as 7k, not 6.9k

Basically, my question is how the hell do you convert K, into a whole number when it’s something like 6.89k.. I hope this makes sense
I need help converting decimal converted thousands.. if that makes sense?
Post Opinion