Unformatted text preview: or cost-sell-markup calculations, you can enter values for two of the three
variables (OLD, NEW, and %CH) and compute a value for the unknown
variable. OLD = cost, NEW = selling price, and %CH = percent markup.
(Leave the value for #PD as 1.) Chapter 7: Using Other Worksheets 57 Procedure: Computing Percent Change, Compound Interest, or
1. Press to select the worksheet. OLD is displayed, along with the previous value. 2. Press to clear the worksheet. 3. Enter the known values:
Percent Change – To compute percent change, enter values for two
of the three variables: OLD, NEW, and %CH. (Leave #PD set to 1.) For
example, to compute %CH, enter values for OLD and NEW.
Compound Interest – To compute compound interest, enter values
for three of the four variables. For example, to compute NEW (future
value), enter values for OLD (present value), %CH (percent interest),
and #PD (number of periods).
Cost-Sell-Markup – To compute cost-sell-markup, enter values for
two of the three variables: OLD, NEW, and %CH. (Leave #PD set to 1.)
For example, to compute %CH (percent markup), enter values for
OLD (cost) and NEW (selling price).
To enter values for the known variables, press
until the variable
label you want is displayed. Then key in a value and press
4. Compute a value for the unknown variable.
. or until the variable label you want is displayed. Then press The calculator computes and displays the value. Example: Percent Change
First, determine the percentage change from a forecast amount of $658 to
an actual amount of $700. Then determine what the new amount would be
if it were 7% below the original forecast.
Procedure Keystrokes Display Select Percent
Interest worksheet. OLD (old contents) Clear worksheet. OLD = 0.00 OLD = 658.00 NEW = 700.00 Enter original
Enter actual amount. 58 658
700 Chapter 7: Using Other Worksheets Procedure Keystrokes Compute percent
Enter 7 as percent
%CH = 7 Compute new actual
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- Summer '09