If we are truly being scientific that number is probably high and it is probably 0% that COVID ALONE is the source of death. Let's explain that.....
Typically one does not die solely from an infectious disease. Typically you may get one or more of the following from getting infected: sepsis (an infection in the blood), respiratory failure (your lungs give out), you get a pneumonia that also causes your lungs to give out, you have heart failure, your kidney or liver stops functioning correctly and then you die. Those are all possible diagnoses IN ADDITION to the infection (in this case COVID but we can substitute flu, measles, hepatitis, etc).