Return blank if range is blank

Hi guys, little help with a formula please...

I currently have:

=IFERROR(SUM((IF(B6="y",5,0)),(IF(C6="y",5,0)),D6,E6*2,F6*3,G6*4,H6*6,I6*7,J6*10),"")

which does everything I need it to do APART from:

- IF the range is BLANK, return blank, not 0.

What do we do this formula to return blank? Without arrays pls.

Attaching a file too.

Thanking in advance!

https://www.excelforum.com/attachmen...1&d=1618398015