Hello @bianca_p , welcome to the Quicksight community!
For the first part of your question, I don’t believe there is a way to check that in the current UI other than seeing how many many individual users are going to receive your paginated report. I would recommend checking the CUR in your console to see what your current costs from Quicksight. I can mark that as a feature request for the Quicksight team.
On the second part of your question, my understanding is that every email you send out or the times that the paginated report is downloaded that it counts as a report being consumed.