11
• Press the number key (
or ) corresponding
to the setting required:
(a b/c) : Mixed fraction
(d/c) : Improper fraction
• If you choose the d/c display format and enter a
mixed fraction, an error will occur.
Calculating Percentages
About Calculating Percentages
• Example 1: Calculate 15% of 1000? (150)
1000
15
• Example 2: What percentage of 440 is 330? (75%)
330
440
• Example 3: 1000 plus 15%? (1150)
1000
15
• Example 4: 1000 minus 15%? (850)
1000
15
• Example 5: If the original weight of a sample is
400g and a further 100g is added to it, what is the
new weight as a percentage of the old weight?
(125%)
100
400
• Example 6: If the temperature increases from 60ºC
to 66
ºC, what is the percentage increase? What is
it when the temperature increases to 69
ºC?
(10%, 15%)
66
60 9
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