how to use CASE and SUM from sql server to powerbi

[userpien]

Hi everyone,

i'm trying to bring this query 

CASE sum(ANAR.SFRIDO)
when 0 then sum(Vendite.Cost)
else sum(Vendite.Cost+Vendite.Cost*ANAR.SFRIDO/100)

end

Vendite and ANAR are the table. Cost and SFRIDO are the columns

 I understood that i have to use SWITCH but i don't understand how to put togethere switch with sum and arithmetic operators of the original query. How can i transform this query that come from sql server to power bi?
Thank you a  lot !

[Awm]

Please optimize the measure.

Measure_Name = 

Var _switchValue = SUM(ANAR[SFRIDO])

return

IF(_switchValue = 0, SUM(Vendite[Cost]), Vendite[Cost]) + MAX(Vendite[Cost]) * _SFRIDO / 100

[userpien]

Sorry, I had written the wrong table name by writing “max” but it was wrong, now I removed it and wrote the correct table name i.e. “Sales”. Why do you use the MAX function? Thank you

[Awm · Accepted solution]

Measure_Name =

Var _SFRIDO = SUM(ANAR[SFRIDO])

Var _COST = SUM(Vendite[Cost])

return

IF(_SFRIDO = 0, _COST, _COST +_COST * _SFRIDO / 100

[userpien]

Thank you, it seems working. 
What about this other query? I don' t understand how to arrasnge this one. Can you help me?

SQL SERVER:
sum(CASE WHEN anama.ppcoll is null
THEN 0
ELSE
case when anama.ppcoll <> 0
then Vendite."Quantità"/ anama.ppcoll
else 0
end
END)

Thanks!