Bluebulb Projects' The Measure of Things presents:
140 is about 0.0000007 times the number of Copies of Charles Dickens' A Tale of Two Cities Sold
In other words, it's 0.000000700 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 1,000,000 times that amount.
(figures as of 2015)
