Assuming that the question is talking about Annual, future and
present values of cashflows.
All 3 of these cashflows can be converted into one another, and
often do get converted in real ilfe. As the question asks, lets see
how they get converted in real life.
- Annual to future value- This is often done in monthly deposits
(SIPs are an example). For example. an investment plan offers
$60000 in return of $2000 per month for 24 months. $60000 is the
future value of an annuity of $2000.
- Annual to Annual- This happens when the tenure of a payment
changes. For example, currently you are paying an annual payment to
your life insurer of $10000 (for both tax purposes and because you
will get a final payment of $70000 after 5 years). But now you want
to change it so that you get the same $70000 but in 4 years. So you
increase the annual payment. This is an annual to annual
change.
- Present to Annual- This is when are converting a fixed present
amount to some annual values. Sometimes, especially in debt
restructuring of huge loans, a big pending amount is allowed to be
paid over equated annual payments. This is converting present value
to annual amounts.