Casio ClassPad II fx-CP400 Examples User Manual download pdf (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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Casio ClassPad II fx-CP400 Examples User Manual Page 35

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