Assume that in 2018, a copper penny struck at the Philadelphia mint in 1796 was sold for $495,000. What was the rate of return on this investment? (Do not round intermediate calculations and enter...

Assume that in 2018, a copper penny struck at the Philadelphia mint in 1796 was sold for $495,000.

What was the rate of return on this investment?(Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)

rate of return =