The number of pages that Zak, Karen, Malia, and Ali can read in a day is shown below:

Zak read 15% of his 56-page book.
Karen read 12% of her 64-page book.
Malia read 14% of her 68-page book.
Ali read 10% of her 72-page book.

Who can read the greatest number of pages in a day?

Zak
Karen
Malia
Ali