My daily percentage of new Corona virus deaths to previous day's total by country graph. 25% = total deaths times 2 every 3 days, 20% = every 4 days, 15% = ever 5 days.
Day after data from https://www.worldometers.info/coronavirus/#countries.
Today’s new Italy numbers:
Total Cases: 86,498
Cases Today: 5,909
Total Deaths: 9,134
Deaths Today: 919
https://www.worldometers.info/coronavirus/#countries