I tried to do some exploration with the data to get some idea on the final number. One of the best plot I found that could tell the final number is plotting the

I tried to do some exploration with the data to get some idea on the final number. One of the best plot I found that could tell the final number is plotting the percentage of cases in the next week with the cases till now. It is like negative half parabola and the time it meets the x axis will give the final number per country. This is the final plot: https://i.imgur.com/5p4Xife.png https://i.imgur.com/5p4Xife.png. You could make a good guess from the data how many people it will affect in the lifetime per country by continuing the same pattern till it reaches x axis.