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 =
*
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