چطوری=chetori=how are you?

خداحافظ=khoda hafez=Goodbye

سلام = salaam = hello خوبى؟ = khubi? = are you good /how are you ? :)

After many years the culture and specially language of Persian people had changed and established differently.You can find many words of persian language that they had forgotten also from dictionaries! for example the people would say:"salame khoda bar shoma bad!(سلام خدا برشما باد) or :"ezzatetan afzoode bad"(عذتتان افزوده باد)

dear zilphah you should know what our friends answered are informal. the formal forms are :chetorin , khobin, haleton chetore which they are used as. how are you. they are used in coversation not in writting