3,213/80,860=3.97% This is what I would call "lethality" but I am not an epidemiologist so there may be a better label. This number by definition is artificially LOW as there are certainly people within the 80,860 confirmed cases that have not yet recovered who could die. The next question is what percentage of the total population is likely to become infected (a future confirmed case). This is the number we can only speculate upon given new daily cases, known case trajectories, models, general epidemiology known with these types of viruses. This is the number I have seen as low as 20% and as high as 60% let's call it the "infectivity rate" for now. No one know what this number is, and in fact, it is pushing this number as low as possible (or at least spreading it out more slowly) that all the social distancing stuff is about.
If you take half of the lowest projected "infectivity rate" - 10% - and the lowest fatality rate I have seen 1% then you get about 325,000 deaths in the US. If we believe the 3.97% number you shared above (which seems high to me in first world countries like US) times the 60% number you get 7,500,000 US deaths - higher than any number I have seen, likely not real and bordering on worst case - a true catastrophe through any lens.
I would guess 25% infectivity times 1% lethality against 325 million population is a reasonable estimate today - that suggests 815,000 dead.
By way of example, the Spanish flu infected about 30% of the world population over 2 years. It caused 650,000 US deaths against a US population of 103 million. If covid-19 is as bad as the Spanish flu, then with our larger population one could extrapolate to 2,050,000 US deaths. I don't think there is any certain data to say that Covid-19 is more or less lethal than Spanish flu, but this gives you an idea of how these things actually work.