Net Amount in RPN Mode. HP 12C Platinum Financial Calculator, 12c

Section 2: Percentage and Calendar Functions 33

Net Amount in RPN Mode

A net amount — that is, the base amount plus or minus the percentage amount — can be calculated easily with your hp 12c platinum, since the calculator holds the base amount inside after you calculate a percentage amount. To calculate a net amount, simply calculate the percentage amount, then press = or -.

Example: You’re buying a new car that lists for $23,250. The dealer offers you a discount of 8%, and the sales tax is 6%. Find the amount the dealer is charging you, then find the total cost to you, including tax.

Keystrokes

(RPN mode)

Display

23250\

8b

-

6b

=

23,250.00

Keys in the base amount and separates it from the percentage.

1,860.00 Amount of discount.

21,390.00

Base amount less discount.

1,283.40 Amount of tax (on $21,390).

22,673.40

Total cost: base amount less discount plus tax.

Net Amount in ALG Mode

In ALG mode, you can calculate a net amount all in one calculation:

For example, to decrease 200 by 25%, just enter 200-25b}. (Result is 150.)

Example: You borrow $1,250 from a relative, and agree to repay the loan in a year with 7% simple interest. How much money will you owe?

Keystrokes

(ALG mode)

Display

1250+7b

}

87.50 Interest on the loan is $87.50.

1,337.50 You owe this amount at the end of one year.

Example: You’re buying a new car that lists for $23,250. The dealer offers you a discount of 8%, and the sales tax is 6%. Find the amount the dealer is charging you, then find the total cost to you, including tax.

Keystrokes

(ALG mode)

Display

23250- 23,250.00

Keys in the base amount and prepares to subtract the discount percentage.

File name: hp 12c pt_user's guide_English_HDPMF123E27 Page: 33 of 275

Printed Date: 2005/8/1 Dimension: 14.8 cm x 21 cm