300,000 using the Yale Study ratio:

300,000 deaths (in western free democratic nations) where ratios like this would make sense would be 8000 tested deaths for every 15,000 non-tested deaths in a ratio. (as in early Yale study)

So, if we have 300,000 tested deaths and IF it were ONLY western democratic ruled nations you would take the 300,000 and divide this by 8000 which equals 37.5. Then you would take the 37.5 and multiply it by 15,000 to arrive at the next number which is 562,500. Then you add the 562,500 to the 300,000 and you have 862,500 which (if this were only western Democratic nations would be the correct number. But, because this is the whole world's number the actual number of deaths would be well above 1 million or more dying from coronavirus worldwide.