Sharp El738 User Guide
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Page 51
50 Calculating straight-line depreciation In April, your company begins depreciation of a commercial building with a 30-year life and no salvage value. The building costs $1,500,000. Calculate the depreciation amount, remaining book value and remaining depreciable value for the third year using the straight-line depreciation method. Procedure Key operation Display Bring up the initial display in NORMAL mode, and select the straight-line deprecia- tion method.s ~ 2 0 000 Select depreciation...
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51 Conversion between APR and EFF Interest rates can be converted between APR (annual, or nomi- nal percentage rate) and EFF (effective interest rate). • The APR is an investment’s annual rate of interest when com- pounding happens only once a year. The interest rate printed on a bond is an example of an APR. • The EFF is an investment’s annual rate of interest when com- pounding happens more often than once a year. It refl ects the actual amount of return for a given nominal rate. For example, if...
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52 Day and Date Calculations Using day and date calculations, you can fi nd dates and the numbers of days between dates. Variables used in day and date calculations Variable Description Default value M-D-Y 1 The fi rst date 1-1-2001 M-D-Y 2 The last date 1-1-2001 DAYS Number of days 0 You can change the date format to D-M-Y (see page 10). Setting the day-count method You can toggle between the actual calendar (365 days plus leap years) and a 360-day calendar (12 months of 30 days each) using . &....
Page 54
53 Calculating number of days Calculate the number of days between December 25, 2008 and August 10, 2009 (using US date format and the actual calen- dar). Procedure Key operation Display Bring up the initial dis- play in NORMAL mode.s 000 Select day and date calculations, and set all the variables to default values. K . b M-D-Y 1=[MO] 1- 1-2001 Make sure the actual calendar is set (360 is not displayed). Enter the fi rst date. 12252008 Q M-D-Y 1=[TH] 12-25-2008 Enter the last date. i 8102009...
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54 Procedure Key operation Display Move to the last date and calculate.z @ M-D-Y 2=[MO] 2-21-2011 Answer: The last date is February 21, 2011. Percent Change/Compound Interest Cal- culations Using percent change/compound interest calculations, you can determine the values of percentage rates of change (increase or decrease) or interest rates compounding periodically. Variables used in percent change/compound interest calculations Variable Description Default value OLD PRC (PV) Old price (old value)...
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55 Calculating percent change Sales in a company were $75,000 during the fi rst year of opera- tion. The second year’s sales were $116,000. What percentage greater were the second year’s sales than fi rst year’s sales? In this calculation, the number of compound periods is set to 1 (default). Procedure Key operation Display Bring up the initial dis- play in NORMAL mode.s 000 Select percent change/ compound interest calculations, and set all the variables to default values.. B . b OLD PRC(PV)=...
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56 Procedure Key operation Display Enter the new value. i 9800 Q NEW PRC(FV)= 980000 Set the number of com- pound periods to 18.i i 18 QPERIODS(N)= 1800 Calculate the com- pound interest rate.z @%(I/Y)= 113 Answer: The compound interest rate is 1.13%. Cost/Sell/Margin/Markup Calculations Using cost/sell/margin/markup calculations, you can determine costs, selling prices, margins and markup. Variables used in cost/sell/margin/markup calcula- tions Variable Description Default value COST Cost 0...
Page 58
57 3. Enter the values of any two known variables as follows: Unknown variable Known variables COST SELL, and MARGIN or MARK UP SELL COST, and MARGIN or MARK UP MARGIN COST and SELL MARK UP COST and SELL Because only either MARGIN or MARK UP is used in any cost/sell/margin/markup calculation, the unused variable is given a value of “----------”. Initially, MARK UP is set to “----------”. If you enter a value for MARK UP, MARGIN is set to “----------”, and vice versa. 4. Move to the variable you...
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58 Breakeven Calculations Using breakeven calculations, you can calculate fi xed cost, vari- able cost per unit, unit price, profi t and quantity. Variables used in breakeven calculations Variable Description Default value FIXED Fixed cost 0 VARIABLE Variable cost per unit 0 PRICE Unit price 0 PROFIT Profi t 0 QUANTITY Quantity 0 Basic operations Refer to page 19 for basic variable operations. 1. Press s to clear the display. • Make sure the calculator is in NORMAL mode. 2. Select breakeven calculations...
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59 Procedure Key operation Display Select breakeven calculations, and set all the variables to default values.$ . b FIXED= 000 Enter fi xed cost.15000 QFIXED= 1500000 Enter variable cost per unit.i 75.80 QVARIABLE= 7580 Enter unit price. i 120 QPRICE= 12000 Leave profi t as is. iPROFIT= 000 Calculate quantity. i @QUANTITY= 33937 Answer: The breakeven point of this product is 339.37 units....