Help with script

Help with script

Could someone please help me? I try to make a scrip but I dont know how.

I tried this:

  1. if (input.survey == "Completo")
  2. {
  3. (input.Percentual_Completo==10)
  4. }
  5. else if ((input.survey == "Completo") && (input.projeto == "Completo"))
  6. {
  7. ( input.Percentual_Completo==15)
  8. }
  9. else if (((input.survey == "Completo") && (input.projeto == "Completo")) && (input.infra == "Completa"))
  10. {
  11. (input.Percentual_Completo==45)
  12. } 

I did this based in the follow syntax: ( https://help.creator.zoho.com/Control-Statements.html ) 

if(<if-boolean-expression>)
{
 <if statements>
}
else if(<elseif-boolean-expression-1>)
{
 <elseif statements-1>
}
else if(<elseif-boolean-expression-2>)
{
 <elseif statements-2>
}


Thanks in advanced,

Andre Boavistta