According to this study out of Santa Clara California, there are 50 to 85 unconfirmed infections for every 1 confirmed. This would raise the number of infections nationwide from 710,000 to 35 to 60.3 million. That would dramatically lower the mortality rate from the current 3 to 5% all the way down to .06% to .1 percent, which makes it less deadly than some strains of the flu. This study lines up with other similar studies around the world. Considering they say an extremely high percentage of people are asymptomatic, these numbers should not at all be surprising.
https://www.medrxiv.org/content/10....Hf3jOI8vjUYV2EzjwvssH9QT-Uww1_iHQasL06fM4kmw8
https://www.medrxiv.org/content/10....Hf3jOI8vjUYV2EzjwvssH9QT-Uww1_iHQasL06fM4kmw8