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DSE FIFO Tax Calculator

Overview

Accounting systems do a lot of things, however one of their pri goals is to calculate profits for the purpose of taxes.

In this exercise you will build a basic accounting system which take a set of trades and calculate the tax owed for the year $201$

Input and Output Specification

Your code should include a function which takes an ordered arr trade strings and returns the correct tax amount as a string in accounting notation.

Each trade is represented by a string with the following format:

Date $($YYYY$-$MM$-$DD$)$

Ticker Symbol

Buy $($B$)/$ Sell $($S$)$ indicator

Quantity

Price

Example list of trade strings:

$2015-01-03,$AAPL,$B,50,80\mathrm{.}0$

$2015-01-05,$AAPL,$B,60,100\mathrm{.}0$

$2015-02-05,$AAPL,$S,70,130\mathrm{.}0$

$2015-02-08,$AAPL,$S,10,90\mathrm{.}0$

$2015-03-10,$AAPL,$S,80,120\mathrm{.}0$