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- Annuity Calculator

This solver can calculate monthly or yearly, fixed payments you will receive over a period of time, for a deposited amount
(**present value of annuity**) and problems in which you deposit money into an account in
order to withdraw the money in the future (**future value of annuity**).

The calculator can solve annuity problems for any unknown variable (interest rate, time, initial deposit or regular deposits). It will also generate a detailed explanation of how the calculations were done.

working...

examples

example 1:ex 1:

A deposit of $\color{blue}{\$120}$ is placed into an account at the $\color{blue}{\text{beginning}}$ of every $\color{blue}{\text{month}}$ for $\color{blue}{8 \, \text{years}}$.
The bank pays $\color{blue}{7\,\%}$ annual interest rate, compounded monthly, and paid at the $\color{blue}{\text{end of the month}}$.
How much is in the account after the last deposit?

example 2:ex 2:

How much money must you deposit now at $\color{blue}{4\,\%}$ interest in order to be able to withdraw $\color{blue}{\$800}$ at the $\color{blue}{\text{end}}$ of each $\color{blue}{\text{year}}$
for $\color{blue}{\text{three}}$ years?

example 3:ex 3:

Suppose you deposited $\color{blue}{\$50 000}$ into a bank account at $\color{blue}{6\%}$ annual interest rate. How many $\color{blue}{\text{months}}$ you can
withdraw $\color{blue}{\$300}$ at the $\color{blue}{\text{end of each month.}}$

example 4:ex 4:

If you need $\color{blue}{\$\,30 000}$ in $\color{blue}{\text{10 years}}$ and you get an interest rate of $\color{blue}{5 \%}$, how much must you invest each of the
next $\color{blue}{\text{10 years?}}$

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