Notice LEXIBOOK PLC251

« n will be repeated. The decimal point selector allows you to select from 0, 2, 4 decimal places, or a floating decimal place (position F), or an automatic conversion to 2 decimal places (position A). The round down/up selector allows you to choose round down to the nearest lower unit (position “ ”), round up to the nearest higher unit (position “ ”), or a result automatically rounded up/down (position “5/4”). To correct a number, press the “ ” key until you reach the number you want to enter. To completely delete a number you have just entered, press “C/CE” once. The “C/CE” key is also used to turn on the calculator. The % key allows you to perform operations with percentage values. M+/M-/MRC – Memory operation keys. COST/SELL/MARGIN – these keys are used to perform a profit analysis. LOCAL/EURO – these keys are used to perform currency conversions. 1. Basic calculations Introduction Keys Calculations To calculate Press Display 23 + 203 - 56 = 23 + 203 - 56 = 170 562 x (38-96) = 38 - 96 x 562 = -32596 (23 x 6 + 78) ÷ 2.3 - 89 = 23 x 6 + 78 ÷ 2.3 - 89= 4.9130434782 1234567 x 9876543 = 1234567 x 9876543 = MEMORY ERROR 12.19325406118 C/CE 12.19325406118 C/CE 0 To calculate the margin Cost: €60Sale price: €100Margin? To calculate the cost Sale price: €200Margin: 6%Cost? To calculate the sale price Cost: €120Margin: 5% Press 60[COST]100[SELL] Press 200[SELL] 6 [MARGIN] Press 120[COST]5[MARGIN] Display MARGIN%40 Display COST 188 Display SELL 126.31 To calculate Press Display 20€ + 6% = 21.2€ 20 + 6 % 21.2 150€ minus 20% = 120€ 150 - 20 % 120 2. Percentage calculations 3. Calculations using memory Before saving a new value to the memory, the content must first be deleted by pressing the 'MRC' key twice and then pressing the 'C/CE' key to delete all previous calculations. To add a value to the memory, enter the chosen number or calculation and then press the 'M+’ key. The result of the calculation is worked out and, if applicable, added to the value in the memory. When 'M' is displayed, it indicates that a value is stored in the memory. To deduct a value from the memory, enter the chosen number or calculation, and then press the “M-” key. The number entered (or the result of the calculation) is deducted from the value stored in the memory. In order to display the value stored in the memory press “MRC”. To delete the memory content, press twice on “MRC”, the caption “M” will disappear. 4. Profit analysis 5. Currency function To save a number in the memory Press Display 2 x 3 = 6 2 x 3 "M+" M 6 -) 3 x 4 = 12 3 x 4 "M-" M 12 +) 4 x 5 = 20 4 x 5 "M+" M 20 14 MRC M 14 MRC 14 To set exchange rate Recall exchange rate Calculation: Exchange rate: 1EURO = 5 units of local currency.Value of 10 euros in local currency? Calculation: Exchange rate: 1EURO = 5 units of local currency. Value of 50 units of local currency in euros? Press 5 RATE LOCAL Press RATE EURO Press 10 [LOCAL] Press 50 [EURO] Display 5 RATE 5 C1C2 5 Display RATE 0 C2 5 Display 50 Display 10 Before using your calculator for the first time, please follow the steps given below: 1. Remove carefully the protection tab of the battery compartment by pulling on the end of the tab. 2. If the tab remains jammed, use a coin to remove the battery compartment, the battery and then the tab. R... »