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70 Other Worksheets
Resetting the Percent Change/Compound Interest
Worksheet Variables
• To reset the Percent Change/Compound Interest variables to default
values, press & z while in the Percent Change/Compound
Interest worksheet.
• To reset default values for all calculator variables and formats, press
&}!.
Entering Values
• For percent-change calculations, enter values for any two of the three
variables (
OLD, NEW, and %CH) and compute a value for the
unknown variable (leave
#PD=1). A positive percent change
represents a percentage increase; a negative percent change
represents a percentage decrease.
• For compound-interest calculations, enter values for the three known
variables and compute a value for the unknown fourth variable.
•
OLD= present value
•
NEW= future value
•
%CH= interest rate per period
• #PD= number of periods
• For cost-sell-markup calculations, enter values for two of the three
variables (OLD, NEW, and %CH) and compute a value for the
unknown.
•
OLD = cost
•
NEW= selling price
• %CH= percent markup
•
#PD= 1
Computing Values
1. To select the Percent Change/Compound Interest worksheet, press &
q. The current value for OLD is displayed.
2. To clear the worksheet, press & z.
Variable Default Variable Default
OLD
0
OLD
0
NEW
0
NEW
0
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