Answer: There is an annual increase of $29602.60 in the value of this comic book.
Explanation:
Since we have given that
Amount he paid for the comic book in 1938 = $10
Amount he get for the comic book in 2011 = $2161000
So, Annual increase in the value in the value of this comic book is given by

Hence, there is an annual increase of $29602.60 in the value of this comic book.