Bluebulb Projects' The Measure of Things presents:
25 is about 0.00000010 times the number of Copies of Charles Dickens' A Tale of Two Cities Sold.
In other words, it's 0.0000001000 times the count of Copies of Charles Dickens' A Tale of Two Cities Sold, and the count of Copies of Charles Dickens' A Tale of Two Cities Sold is 10,000,000 times that amount.
(figures as of 2015)
