14
• An error occurs if you try to input a mixed fraction while
the d/c display format is selected.
k
Percentage Calculations
•
Example 1 :
To calculate 12% of 1500
(180)
1500
-
12
A
v
•
Example 2:
To calculate what percentage of 880 is 660
(75%)
660
\
880
A
v
•
Example 3 :
To add 15% onto 2500
(2875)
2500
-
15
A
v
+
•
Example 4 :
To discount 3500 by 25%
(2625)
3500
-
25
A
v
,
•
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
=
*
