BA.20 Profit Manageré Quick Reference Guide English Ba20eng.
The BA.20 Profit Manageré Turning the Calculator On and Off ................................ 3 Calculator Display ......................................................... 3 Accuracy and Rounding Information............................. 4 Basic Operations........................................................... 4 Calculations with a Constant......................................... 5 Squares and Square Roots........................................... 6 Percent Calculations ................................
Turning the Calculator On and Off To turn the BA-20 on, expose the solar panel to an adequate light and press J. The BA-20 turns off when the solar panel is no longer exposed to the light. Protect your BA-20 from prolonged periods of direct sunlight and high temperatures. Calculator Display Memory Indicator Minus Sign Error Indicator You can enter and display 10-digit numbers (with a maximum of 9 digits to the right of the decimal). Apostrophes separate large numbers into hundreds, thousands, etc.
Accuracy and Rounding Information Calculations are accurate to the tenth digit. When a calculation result exceeds 9999999999, the first 10 digits are displayed with a decimal point 10 places to the left of its true position, and E is displayed. Position the decimal point correctly by mentally moving it 10 places to the right and inserting zeros as required. Calculations with more than 10 digits to the right of the decimal point are rounded to 10 digits.
Examples 7.921 + 1.6 - 12.321 = ? 7.921 @ 1.6 E 12.321 D 2.8 – 12 Q 13 =? 6 12 B13 C 6 D 26. Calculations with a Constant The BA-20 retains the last operation and its associated number. This allows you to repeat calculations by entering only the new number and pressing D. For addition, subtraction, and division, pressing D repeats the operation and the number that follows it. 2 + 3 = ?; 4 + 3 = ?; 6 + 3 = ? 2@3D 4D 6D 5. 7. 9. 8 - 6 = ?; 3 - 6 = ?; 10 - 6 = ? 8E6D 3D 10 D 2. 3. 4.
For multiplication, pressing D repeats the operation and the number that precedes it. 3 Q 8 = ?; 3 Q 15 = ? ; 3 Q 30 = ? 3B8D 15 D 30 D 24. 45. 90. Squares and Square Roots To square a number, enter the number and press B D. 2.5 2 = ? 2.5 B D 6.25 (1.6 x 2.5) 2 = ? 1.6 B 2.5 B D 16. To find the square root of a number, enter the number and press A. 144 = ? 1 44 A 12. 2 16 + 33 = ? 16 B D @ 33 D A 17. Note: Attempting to find the square root of a negative number results in an error.
Percent Calculations Percentages: 5% of $250 = ? 250 B 5 F 12.5 Add-ons: $250 plus 5% markup = ? 250 @ 5 F — or — 262.5 250 B 5 F @D 12.5 262.5 Discounts: $250 less 5% discount = ? 250 E 5 I — or — 237.5 250 B 5 F ED 12.5 237.5 Ratios: $600 is what percent of $1,500? 600 C 1500 F 40. Combinations: $129 less 25% discount plus 4% tax = ? 129 E 25 F @ 4 F 100.62 7-ENG Ba20eng.
Cost, Sell, and Margin The BA-20 assists you in making informed decisions concerning cost, selling price, and profit margin. CST SEL SEL CST MAR CST MAR MAR SEL Using the keys in the CST, SEL, and MAR columns, any one of these figures can be calculated when the other two are known. The following points should be noted while working costsell-margin problems: ¦ The column of keys you use is determined by the type of calculation you want to make.
Determine the Cost (CST column keys) If the selling price of an item is $1.25 and the margin is 20%, find the cost of the item? 1.25 Q 20 K 1. Determine the Selling Price (SEL column keys) If the cost of an item is $1.00 and the margin is 20%, find the selling price. 1 S 20 K 1.25 Determine the Margin (MAR column keys) If the cost of an item is $1.00 and the selling price is $1.25, find the margin percentage. 1 S 1.25 Q 20.
Examples (4 Q 11.99) - (12 Q 0.98) = ? L L 4 B 11.99 M 12 B .98 N L 47.96 M 11.76 M 36.2 M 7.9 + 8.1 =? -(5.2 + 2.8) L L 5.2 @ 2.8 N 7.9 @ 8.1 C LD 8. M 16. M 2. M 4 Q 11.99 = x; 43.15 - x = ? L L 4 B 11.99 M 43.15 E L D 47.96 M 4.81 M 10-ENG Ba20eng.
Error Conditions An error/overflow condition is indicated by E in the display. Press R once to clear the error, press R twice or J once to clear the calculator. Do not continue calculations after you have cleared the overflow condition by pressing R once. An error occurs when you attempt to: ¦ Enter data into a cost, sell, or margin calculation using an incorrect key sequence (page 8). ¦ ¦ Enter an integer with more than 10 digits (page 4).
TI Support and Service Information For General Information E-mail: Phone: Home Page: ti-cares@ti.com 1.800.TI.CARES (1.800.842.2737) For U.S., Canada, Mexico, Puerto Rico, and Virgin Islands only education.ti.com For Technical Questions Phone: 1-972-917-8324 For Product (hardware) Service Customers in the U.S., Canada, Mexico, Puerto Rico and Virgin Islands: Always contact Texas Instruments Customer Support before returning a product for service.
