A book sold 39,400 copies in its first month of release. suppose this represents 8.9% of the number of copies sold to date. how many copies have been sold to date?
The book has sold 442,696 copies to date.
This was calculated by making a proportion: 8.9 : 39,400 = 100 : X where X Is the number of copies sold.
Then I calculated 39,400*100/8.9 to obtain the answer
