For the last time, we don't know how many people have been infected. No baseline. No randomized, weighted for the population= age, race, economics, prior morbidities, travel regions and other key demographic categories. Without that you do not have a true fatality rate, you have the mortality rate for the people who were tested, nothing more.
Please recall, early tests had a high incidence of false negatives. Current antibody tests have a 48% false negative rate, that's a coin toss, it's either right or it's wrong so even the latest testing is unreliable at this point to create a valid working data set.
If I only test the people who died of COVID 19 I could say it's 100% fatal. I'm not trying to talk down to you, does that make sense? If I test 1 million people who never had it, that doesn't tell us anything about a true mortality rate. Without a well done random scientific baseline, the numbers can't tell the accurate story.
Look at the deviation in the models that were used. In some the range was plus or minus 180,000 to 3.1 million fatalities. We trust models that produce a much tighter range, on a scale the size of the US census figures we would really like to see +/- 25,000.
I don't know if it's still up, I was watching it daily to make sense of this stuff, but the changes are so insignificant at this point that once a month is enough to monitor the trends, but on WorldOMeter.org ( I like this site because it's just raw data, no editoriallizing or interpretation, just the straight numbers as they were reported and corrected) they had a link to projections, for some states and some for the national picture. A few of the graph versions showed you just how broad the deviation was. I could say it was sloppy, but it was the best anyone could do with incomplete baseline data.
As I mentioned in another comment, there was a justified panic when this started, but as data started coming in and most importantly, the genetic mapping that was done in record time was distributed, it became apparent that the danger of the virus was horribly overstated. Humanity has an evolved resistance to coronavirus, but how this one was handled guarantees that it will flare again this fall, rather than follow the typical path of other coronavirus outbreaks. Fact is, if you are 80 yo or older, this one is really bad news, everyone else, not so much, just a nasty bug if the conditions are right