Wrong. There are likely hundreds/thousands of others that are not even sick (the vast majority of under 50). You say take away numbers, I say to add to the healthy side and divide. The chart below is from know cases. Likely there are a multitude that are unknown and not sick. All signs suggest that many people may have had mild cases of the virus and recovered without special treatment.
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OK, let's do it your way.
China has an aging population we can assume that each decade has roughly the same number of people.
0.2+0.2+.02+.04+1.3+3.6+8+14.8)/8=3.6% fatality rate...