How do I calculate with financial calculator the effective annual return rate for an endowment of 10 years tenure with yearly payment of $500 (for 10years) and illustrated yield of $70000 at maturity?

Hi Financial Noob,

That'll be a yield of 1.17% based on your comments below.

You can use a yield calculator or contruct one in Excel with the IRR function.

You'll be basically measuring cashflow over a 10 year periods, with a periodic outflow of $6K/yr and an inflow of $64K at the end of the 10th year. Use 'IRR from Cashflow'

Wow, that is quite a good gain! Do you mean $7000 at maturity or $5000 yearly payment?

But regardless, for simple calculation:

Just take the profit / total capital X 100%, then divide by 10 years