100
BA II PLUS™ Calculator
Percent Change/Compound Interest Worksheet
To access the Percent Change/Compound Interest worksheet,
press
&
q
. You can also compute compound interest or
perform cost-sell-markup calculations.
Percent Change/Compound Interest Worksheet Labels
Label
Meaning
Variable Type
OLD
Old value
Enter/compute
NEW
New value
Enter/compute
%CH
Percent change
Enter/compute
#PD
Number of periods
Enter/compute
Notes about the Percent Change/Compound Interest
Worksheet
♦
&
q
&
z
sets
OLD=0
,
NEW=0
,
%CH=0
, and
#PD=1
.
♦
&
}
!
sets
OLD=0
,
NEW=0
,
%CH=0
, and
#PD=1
.
♦
For percent-change calculations, enter values for any two of
the three variables (
OLD
,
NEW
, and
%CH
) and compute a
value for the unknown variable. (Leave
#PD=1
.) A positive
percent change represents a percentage increase, and a
negative percent change represents a percentage decrease.
♦
For compound-interest calculations, enter values for three of
the four variables and compute a value for the unknown.
<
OLD
= present value
<
NEW
= future value
<
%CH
= interest rate per period
<
#PD
= number of periods
♦
For cost-sell-markup calculations, enter values for two of the
three variables (
OLD
,
NEW
, and
%CH
) and compute a value for
the unknown.
<
OLD
= cost
<
NEW
= selling price
<
%CH
= percent markup
<
#PD
=
1
