Tables :: Calculated Column Expression Formatting

I've now since moved everything into one table but i need formatting of my calculated field (I'm new to all this).

Below are the 3 expressions working independently of one another, I just need them combined in to one if possible. As I am getting an "invalid syntax" error or "too many arguments" when I try to get it working

PHP Code:

0.5*IIf([Type]="Offlist" And [APP_LINE_OFFA]>3,1,0)+0.2*IIf([Type]="Offlist" And [APP_LINE_OFFB]>2,1,0)+
IIf([Type]="Offlist",Abs([EP_DETAILS_OFF]*0.15+[REF_DETAILS_OFF]*0.15),0) 

PHP Code:

IIf([Type]="Onlist",Abs([EP_DETAILS_ON]*0.15+[REF_DETAILS_ON]*0.2+[GEN_NOTE_ON]*0.2+[APP_LINE_ON]*0.25+[SPEC_INS_ON]*0.2),0) 

PHP Code:

IIf([Type]="Aged Report", Abs([EP_DETAILS_AGED]*0.2+[REF_DETAILS_AGED]*0.2+[GEN_NOTES_AGED]*0.3+[SPEC_INS_AGED]*0.3),0)