printing only the final iteration

Question

i have written a code, it returns a list that is an update of a previous list. i just need help figuring out how to return only the final value

def doit(company,action,currency_code,amount,bank):
    amount_in_usd = convert_to_usd(currency_code,amount)
    newlist=[]
    if action == "BUY":
        amount = float(amount) - amount_in_usd
        y=([company,amount])
        newlist.append(y)
        for index, values in enumerate(newlist):
            bank[values[0]]=(bank[values[0]]+values[1])
            if index == len(newlist) - 1:

                return bank
    if action == "SELL":
        amount = float(amount) + amount_in_usd
        y=([company,amount])
        newlist.append(y)
        for index, values in enumerate(newlist):
            bank[values[0]]=(bank[values[0]]+values[1])
            if index == len(newlist) - 1:

                return bank

i need bank to be returned only once

Answer 1

Have a single return bank statement a the end of the function, not conditional to anything. Remove both such statements as they currently are.