E-14
•
Example 5:
To discount the sum of 168, 98, and 734 by
20%
(800)
168
+
98
+
734
=
g
A
j
1
p
1
-
20
A
v
,
* As shown here, if you want to use the current Answer
Memory value in a mark up or discount calculation, you
need to assign the Answer Memory value into a variable
and then use the variable in the mark up/discount
calculation. This is because the calculation performed
when
v
is pressed stores a result to Answer Memory
before the
,
key is pressed.
•
Example 6:
If 300 grams are added to a test sample
originally weighing 500 grams, what is the percentage
increase in weight?
(160%)
300
+
500
A
v
•
Example 7:
What is the percentage change when a value
is increased from 40 to 46? How about to 48?
(15%, 20%)
46
,
40
A
v
e
e
e
e
e
e
8
=
k
Degrees, Minutes, Seconds
Calculations
• You can perform sexagesimal calculations using degrees
(hours), minutes, and seconds, and convert between
sexagesimal and decimal values.
•
Example 1:
To convert the decimal value 2.258 to a
sexagesimal value and then back to a decimal value
*
2.258
=
2.258
A
O
2
°
15
°
28.8
I
2.258
•
Example 2:
To perform the following calculation:
12
°
34’56”
3.45
12
I
34
I
56
I
-
3.45
=
43
°
24
°
31.2
