When he died in 1790, Benjamin Franklin left $4600 to the city of Boston, with the stipulation

Question:

When he died in 1790, Benjamin Franklin left $4600 to the city of Boston, with the stipulation that the money and its earnings could not be used for 100 years. The bequest grew to $332,000 by 1890. What (equivalent) compound annual rate of return did the bequest earn during the 100-year period?

Fantastic news! We've Found the answer you've been seeking!