Texas Instruments Calculator - Manual (Page 82)

78 Other Worksheets
6. To change the day-count method setting, press # until ACT or 360 is
displayed.
7. To compute a value for the unknown variable, press # or " to
display the variable, and then press %. The calculator displays the
computed value.
Example: Computing Days between Dates
A loan made on September 4, 2003 defers the first payment until
November 1, 2003. How many days does the loan accrue interest before
the first payment?
Answer: Because there are 58 days between the two dates, the loan
accrues interest for 58 days before the first payment.
Profit Margin Worksheet
Profit Margin Worksheet Variables
To Press Display
Select Date worksheet. & u DT1= 12-31-1990
Enter first date. 9.0403 ! DT1= 9-04-2003 
Enter second date. # 11.0103 ! DT2= 11-01-2003 
Select actual/actual day-count
method. # # ACT
Compute days between dates. " % DBD= 58.00 
The Profit Margin worksheet computes cost, selling price,
and gross profit margin.
Note: To perform markup calculations, use the Percent
Change/Compound Interest worksheet.
• To access the Profit Margin worksheet, press &
w.
• To access profit margin variables, press " or #.
• Enter values for the two known variables, and then
compute a value for the unknown variable.
Variable Key Display Variable Type
Cost & w CST Enter/compute
Selling price # SEL Enter/compute