Assume that in 2020, the first edition of a comic book was sold at auction for $620,800. The comic book was originally sold in 1935 for $.10. What was the annual increase in the value of the comic book?

Assume that in 2020 , the first edition of a comic book was sold at auction for $620,800. The comic book was originally sold in 1935 for $.10. What was the annual increase in the value of the comic book? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16