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Chapter 9: Financial Features
ThefollowingCALCfunctions,08 Bal, 09
Σ
Prn
and 10
Σ
IntrequirethevaluesofI%,PVandPMT
variables.EnterthevaluesbeforehandintheTVM-
SOLVERfunction.
Example using the 08 and 10
calculations
Youplantopurchaseahouseforthepriceof$300,000.The
downpaymentis$100,000.Calculatethemonthlypaymentsfor
a30-yearloanatanannualinterestrateof5%fortheremaining
$200,000.
08 Bal ( Bal (number of payments [, decimal place to round])
Calculatesloanbalance.
Calculatetheloanbalanceafter
15 years (180 months).
09
Σ
Prn (
Σ
Prn (initial number of payments, end number of payments [,
decimal place to round]).
Calculatestheprincipalamountofthetotalpayments.
Comparetheprincipalamountof
the total payments after 5 (1 to
60 months) and 10 years (61 to
120 months).
10
Σ
Int (
Σ
Int (Initial number of payments, end number of payments [,
decimal place to round])
Calculatesthesumoftheinterestonthepayments.
Comparethesumoftheinterest
on the payment sum after 5
years and 10 years.