xirr_flutter 1.0.1

Flutter implementation of xirr with bonus Newton-Raphson implementation

A Flutter library to calculate Internal Rate Of Return(XIRR) for financial investments.

Features

Calculates Internal Rate Of Return(XIRR) to know return on investment. It uses Newton-Raphson method for calculating Internal Rate Of Return

Getting started

Library will throw exceptions if inputs are not in line with expectations

• If all transactions are positive/negative only
• If all transactions are for same day
• If no transactions are passed

Please check test cases to know more details

Usage

Deposit/Investment should be provided with negative amount and withdrawals should be provided with positive amount.

List<Transaction> transactions = [];

transactions.add(Transaction.withStringDate(-1000, "2010-01-01"));
transactions.add(Transaction.withStringDate(1100, "2011-01-01"));

final double? result =
XirrFlutter.withTransactions(transactions).calculate();
expect(result, 0.10);

Additional information

This library was created based on Java Xirr library available at https://github.com/RayDeCampo/java-xirr Hence terms of the library and license follows original creator