HP 10s Scientific Calculator - Manual (Page 15)

Press CD to display the settings screen.
Press the number key ( DO or [T] ) corresponding
to the setting required:
ГП (ab/c ) : Mixed fraction
m ( 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 И 15 H®
Example 2: What percentage of 440 is 330 ? (75%)
330 H 440 H ®
Example 3: 1 000 plus 1 5% ? (11 50)
l O O O O 1 5 H ® И
Example 4: 1 000 minus 1 5% ? (850)
l O O O O 1 5 H ® H
Example 5: If the original weight of a sample is 400g
and a further lOOg is added to it, what is the new
weight as a percentage of the old weight ?
(125%)
100 D 400 H И
Example 6: If the temperature increases from 60*0
to 66t;, what is the percentage increase? What is
it when the temperature increases to 69t:?
( 1 0 % , 1 5 % )
6 6 H 6 0 H ®
H H 9 H
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