Casio ClassPad II fx-CP400 Examples - Manual (Page 35)

Chapter 11: Financial Application 35
Page 2 (Amortization): Use the monthly payment value you obtained on
Page 1 (PMT = –837.9966279) to determine the following information for
payment 10 (PM1) through 15 (PM2).
• The balance (BAL) of the principal remaining after payment 15
• The interest amount (INT) included in payment 10
• The principal amount (PRN) included in payment 10
• Total interest to be paid (
ΣINT) from payment 10 to payment 15
• Total principal to be paid (
ΣPRN) from payment 10 to payment 15
As on Page 1, the mortgage has a loan amount (PV) of $100,000 at an
annual rate (
I %) of 8.025%, compounded monthly (C/Y = 12) for 20 years.
Page 2 calculation results
Page 1 (Compound Interest) operations:
1. Tap [Calc(1)] - [Compound Interest].
2. Input the values below into the applicable fields.
N = 240, I % = 8.025, PV = 100000, FV = 0, P/Y = 12, C/Y = 12
3. Tap [PMT] to obtain the payment value.
Page 2 (Amortization) operations:
4. Tap [Calc(1)] - [Amortization].
• PV, I %, and PMT values will automatically be copied from Page 1 to
Page 2.
5. Input 10 for PM1 and 15 for PM2.
6. Tap [BAL], [INT], [PRN], [
ΣINT], and then [ΣPRN].
1104 Interest Conversion
What is the nominal interest rate ([APR]) on a certificate that offers an annual
effective interest rate ([EFF]) of 5%, compounded bi-monthly (N = 6)?
1. Tap [Calc(1)] - [Interest Conversion].
2. Input 6 for N and 5 for EFF.
3. Tap [APR] to obtain the nominal interest rate.
1105 Cost/Sell/Margin
What is the selling price ([Sell]) required to obtain a margin of profit ([Margin])
of 60% on an item that cost $40 ([Cost])?
1. Tap [Calc(1)] - [Cost/Sell/Margin].
2. Input 60 for Margin and 40 for Cost.
3. Tap [Sell] to obtain the selling price.
1106 Day Count
How many days ([Days]) are there from March 3, 2005 (d1) to June 11, 2005
(d2)? Be sure to change the “Days in Year” setting to “365 days” before
performing a Day Count calculation.
1. Tap [Calc(1)] - [Day Count].
2. Input dates for d1 and d2.
3. Tap [Days] to obtain the number of days.
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