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HP HP-11C - Page 52

HP HP-11C
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50
Section
3:
Numeric
Functions
T
Z»
Y=
150
X
150 150
Keys
150
25
LASTX
=
The
percentage
will
appear
in
the
displayed
X-register,
the
base
number
will
remain
in
the
Y-register,
and
the
percentage
rate
will
be
placed
in
LAST
X.
The
stack
does not
lift,
so
any
values
held
in
the
Z-
and
T-registers
before
pressing
will
remain.
The
above
illustration
shows
the
use
of
the
[%]key
to
calculate
25%
of
150.
Percent
Difference.
The
function
calculates
the
percent
difference—the
relative
increase
or
decrease—between
two
num-
bers.
To
find
the
percent
difference:
1.
Key
in
the
base
number
(typically,
the
number
that
occurs
first
in
time).
Press
[ENTER].
Key
in
the
second
number.
Press
[8](2%].
T
Z°
Y
-
150 150
X=»
150 150
225
Keys
150 225
LAST
X
¥
225
Using
the
above
order
of
entry,
a
positive
result
signifies
an
increase
of
the
second
number
over
the
first;
a
negative
result
signifies
a
decrease
of
the
second
number
below
the
first.
The
preceding
illustration
shows
the
use
of
to
calculate
the
percent

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