How to change report's sum column with 0 decimal

Hi, could anyone help?
I have changed original column in view as of editor,

for example, $value=number_format($value);

It shows right format, but SUM column doesn't.
please see the picture, how could I modify it, thank you! <img src='https://asprunner.com/forums/file.php?topicimage=1&fieldname=question&id=13088&image=1&table=forumtopics' class='bbc_emoticon' alt=':rolleyes:' />
picture link