How do you calculate payments in installments with compound interest?

Payments overview

There are two possible configurations for collecting installment payments with compound interest:

Beginning of the period

Collection at the beginning of the period is calculated as follows:

i = Interest rate
n = Number of installments
PV = Present Value (total amount of the purchase without interest)
Installment =
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Collection at the end of the period is calculated as follows:

i = Interest rate
n = Number of installments
PV = Present Value (total amount of the purchase without interest)
Cash Flow Multiplier =
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Installment = PV x Cash Flow Multiplier

i = 1%
n = 12
PV = 1000
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i = 1%
n = 12
PV = 1000
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