Sharp EL733A EL-733A Operation Manual - Page 14

Sharp EL733A Manual

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In summary again, to calculate a percent increase or decrease, start the calculation as if you were going to take MARK D GIN SEL A M the difference using E , but instead of pressing E, press 2NIFI id% Besides the V and [d /4 keys on your calculator for percentage calculations, you will find the very useful functions ipsA , mAFI , and RIMU . Each one of these keys represents a memory register in the calculator. You 1 Example: As the owner of a trucking firm, you recently had wind deflectors installed on the tops of all can store any number in these registers when you are in NORMAL mode. Each register can hold one number. your tractors in an effort to save on fuel costs. Your average mileage jumped from 5.7 miles MU per gallon to 6.2 miles per gallon. By what MAR percentage did you cut your fuel costs? SEL Solution: Before installing the deflectors, fuel for each mile on the road cost you the price of a gallon of gas divided by 5.7. Now each mile only costs you the price of a gallon of gas divided by 6.2. These are the keystrokes: 6.2 ( 1 E 5.7 tEA [2ndo V%I Result: -8.06 Installing the deflectors cut fuel costs by 8.06%. CST However the true utility of these keys is not just in the fact that you can store numbers in them for later use, but in the fact that the numbers in these registers have a special meaning to the calculator. The main function of these keys is to allow you to do some powerful business percentage calculations. The meanings of these keys are as follows: El Cost Selling Price ,gAll Margin [Mu) Mark-Up

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In
summary
again,
to
calculate
a
percent
increase
or
decrease,
start
the
calculation
as
if
you
were
going
to
take
the
difference
using
E
,
but
instead
of
pressing
E,
press
id%
2NIFI
Example:
As
the
owner
of
a
trucking
fi
rm,
you
recently
had
wind
deflectors
installed
on
the
tops
of
all
your
tractors
in
an
effort
to
save
on
fuel
costs.
Your
average
mileage
jumped
from
5.7
miles
per
gallon
to
6.2
miles
per
gallon.
By
what
percentage
did
you
cut
your
fuel
costs?
Solution:
Before
installing
the
deflectors,
fuel
for
each
mile
on
the
road
cost
you
the
price
of
a
gallon
of
gas
divided
by
5.7.
Now
each
mile
only
costs
you
the
price
of
a
gallon
of
gas
divided
by
6.2.
These
are
the
keystrokes:
6.2
(
1
E
5.7
tEA
[2ndo
V%I
Result:
—8.06
Installing
the
deflectors
cut
fuel
costs
by
8.06%.
MARK
D
GIN
SEL
A
M
Besides
the
V
and
[d
/4
keys
on
your
calculator
for
percentage
calculations,
you
will
find
the
very
useful
functions
ipsA
,
mAFI
,
and
RIMU
.
Each
one
of
these
keys
represents
a
memory
register
in
the
calculator.
You
can
store
any
number
in
these
registers
when
you
are
in
NORMAL
mode.
Each
register
can
hold
one
number.
MU
MAR
SEL
CST
However
the
true
utility
of
these
keys
is
not
just
in
the
fact
that
you
can
store
numbers
in
them
for
later
use,
but
in
the
fact
that
the
numbers
in
these
registers
have
a
special
meaning
to
the
calculator.
The
main
function
of
these
keys
is
to
allow
you
to
do
some
powerful
business
percentage
calculations.
The
meanings
of
these
keys
are
as
follows:
El
Cost
Selling
Price
,gAll
Margin
[Mu)
Mark
-Up
1