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COMMERCIAL APPLICATIONS
1.
Discount and Tax Add-on
Example:
An item sells for $93.50 with a discount of 10%
and sales tax of 5% on the reduced sum.
What is the discount?
What is the sales tax?
What is the total
selling price?
Sett; ng : Deci m al
DEPRESS KEY
[!][I]O[s]
B
IIJ@]
@'J
EJ
I±I
!II
I%l
L=J
swi tch at "2"
DISPLAY SHDWS
93.
5
93.
5
10.
9.35 (Discount)
84. 15 (Sales price)
84.15
5.
4. 21 (Sales tax)
88.36 (Total
selling price)
switch at "2"
DISPLAY SHOWS
17. 25
(177.1)
17.25
120.
20.7 (First answer)
279. 11
48. 15 (Second answer)
56. 9
9. 82 (Thi rd answer)
~
!II~019]
I%]
2.
Percentage Figure as a Constant
Example: How much is 177.1% of $120, $279.11 and
$ 56. 90?
Setting: Decimal
DEPRESS KEY
LilllJ00!I1
o
0IT.]@]
I%]
0QJI9JOmlJ
3.
Interest Calculat ion
Example: Find interest charged on a loan for $ 1, 250
for
one year at
8%
interest.
What ; s the total amount to be paid back?
What are the monthly payments for 12 months?
Setting: Decimal switch at "2"
DEPRESS KEY
DISPLAY SHOWS
(IJIT]!II@l
1250.
[±]
1250.
ill
8.
~
100. (Interest)
EJ
1350. (Principle and Interest)
EJ
1350.
(IJ0
12.
EJ
112. 5 (Monthly payment)
9
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