

That’s not a bell curve. Maybe some kind of beta, but the beta distribution only exists from 0 to 1, it’s cannot deal with infinite ranges. You can né thinking on something that starts as an exponential distribution curve, but growths at the end, but I have never found that kind of curve on my studies.
Also in finance, hate excel, use python for everything, all my scripts still end with pd.to_excel() because I’m not the only person on the company.