Global mortality rate if you don't include China's numbers is 30%. I don't think anyone believes China's numbers are absolutely correct.
Deaths globally outside of China: 18,878
Recoveries globally outside of China: 44,088
It's possible not all recoveries have been reported. It's also likely that many have it and don't get tested or get reported as having Covid-19 and experience mild symptoms.
However, it appears pretty accurate because the United States isn't going to have many recoveries yet. Just 7 days ago we had 10,000 cases, now we have 69,000. When the majority of your cases are active cases, there aren't going to be many recoveries (or deaths) yet. This thing can take a couple of weeks, sometimes even longer, to reach a recovery or death so there is a lag time.
Italy has more recoveries because they were a couple weeks ahead of where we are at.
https://www.worldometers.info/coronavirus/#countries
This is worse than any of us want to believe. And if you don't think it is, then we need to be out there testing a sample of the general asymptomatic population to determine how many people actually have it and get a true mortality rate instead of just relying on China's original numbers.