Click in the field where you want to make the calculation.

You can do calculations in any numeric field, such as dollar amounts in
registers and quantities in transactions. You can't calculate time entries,
check numbers, or dates.

Open the calculator:

Press the = key.

or

Type a number followed by +, -,
*, /, or =.

On the paper tape that appears, enter as many numbers and operators (+, -,
*, /, or =) as you need to complete the calculation. You can enter numbers as
large as 9,999,999.99.

To:

Press:

Get a subtotal

=

Clear an entry

C

Clear the tape

C (twice)

Repeat the last
calculation

The operator key as many times as needed. For example, to add 100 three
times, you would type:

100 + + +

Enter a negative
number

The key for the operation you want to perform, press -, and enter the
number. For example, to multiply 100 by minus 6.25, you would type:

100 * - 6.25

Cancel the
calculation

Esc

To enter the calculation result in the field, press Enter or Tab, or click
anywhere outside the boundary of the tape.