In 2012, an Action Comics No. 1, featuring the first appearance of Superman, was sold at auction for $925,000. The comic book was originally sold in 1938 for $.10. Required: For this to have been true, what was the annual increase in the value of the comic book? (Round your answer as directed, but do not use rounded numbers n intermediate calculations. Enter your answer as a percent rounded to 2 decimal places (e.g., 32.16).) Annual increase