SSRS report coming on half page

Hi All,

I have a report which is coming in half page for few records. i want to use full page for this report. go below for the decsription of the issue which i am facing.

i have created a report which is grouped and page break according to item id. Every page has a unique item detail.

Now some item has many transaction some has few. If trnsaction are few then the report is taking half page only which is looking awkward. I want to take it in full page and want to fill total in bottom at page end.

i tried with extra rectangle but it’s it’s space and going to another page.