Texas Instruments BA-20 Profit Manager User Manual - Page 74

Resetting the Percent Change/Compound Interest, Worksheet Variables, Entering Values, Computing Values

Get Texas Instruments BA-20 Profit Manager PDF manuals and user guides View all Texas Instruments BA-20 Profit Manager manuals
Add to My Manuals
Save this manual to your list of manuals

Page 74 highlights

Resetting the Percent Change/Compound Interest Worksheet Variables • To reset the Percent Change/Compound Interest variables to default values, press & z while in the Percent Change/Compound Interest worksheet. Variable Default OLD 0 NEW 0 Variable %CH #PD Default 0 1 • To reset default values for all calculator variables and formats, press & } !. Entering Values • 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; a negative percent change represents a percentage decrease. • For compound-interest calculations, enter values for the three known variables and compute a value for the unknown fourth variable. - 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 Computing Values 1. To select the Percent Change/Compound Interest worksheet, press & q. The current value for OLD is displayed. 2. To clear the worksheet, press & z. 70 Other Worksheets

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
70
Other Worksheets
Resetting the Percent Change/Compound Interest
Worksheet Variables
•
To reset the Percent Change/Compound Interest variables to default
values, press
& z
while in the Percent Change/Compound
Interest worksheet.
•
To reset default values for all calculator variables and formats, press
& } !
.
Entering Values
•
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; a negative percent change
represents a percentage decrease.
•
For compound-interest calculations, enter values for the three
known variables and compute a value for the unknown fourth
variable.
–
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
Computing Values
1.
To select the Percent Change/Compound Interest worksheet, press
& q
. The current value for
OLD
is displayed.
2.
To clear the worksheet, press
& z
.
Variable
Default
Variable
Default
OLD
0
%CH
0
NEW
0
#PD
1