“Harry Potter and the Deathly Hallows” sold an estimated 72.1 million copies over the weekend. If you take the lowest discounted price of $18 per book… that’s 1.297 billion dollars!

Nielsen BookScan said the figures for “Harry Potter and the Deathly Hallows” were provisional; full and final figures are set to be released Tuesday.

The company said 2.6 million copies of “Deathly Hallows” were sold in Britain in the 24 hours after it went on sale in England at 7:01 p.m. ET Friday. The figure breaks the previous record of just over 2 million copies held by the previous Potter volume, “Harry Potter and the Half-Blood Prince.”