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Reputation: 63

Net Present Value Function Using List of Dictionaries

For Lists and tuples I've been able to do the same thing to find NPV

cash_flow_list_of_lists = [[1, 200], [4, 500], [7, 1600]]

Compute and print the present value as per above

NPV=sum([cash_flow/(1.1**year) for year,cash_flow in 
cash_flow_list_of_lists])
print("Present Value = " , (f"{NPV:9,.2f}"))

How do I do this with a dictionary list

cash_flow_dictionary = {1: 200, 4: 500, 7: 1600}

Compute and print the present value as per above

I tried NPV=sum([cash_flow_dictionary.values()]/(1.1**cash_flow_dictionary.keys()) in cash_flow_dictionary)

But I have no idea how to do this

Upvotes: 1

Views: 123

Answers (1)

Anand Sai
Anand Sai

Reputation: 1586

The solution is provided below:

NPVDict = sum([cash_flow/(1.1**year) for year,cash_flow in
cash_flow_dictionary.items()]) # Note items function to iterate over dictionary
print("Present Value = " , (f"{NPVDict:9,.2f}"))

Let me know if it helps!!

Upvotes: 1

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