Worksheet Doesn't Cover Entire Page

I would like the "Finish Summary by Age" tab worksheet to look like the "Nursery Master Sheet" and "Circle K 1 - CD Farms Nursery" tab worksheets. I'd like the "Finish Summary by Age" tab worksheet to cover the majority of the paper like worksheets on the other tabs. Please help.

in your print settings select fit on one page, or choose a print region and change the print settings to fit on one page