CASIO ND-26S Professional Business Calculator STUDY CAL ◇Recommended Calculator by the Japan Calculator Skills Examination Association◇ Stored in its included case for several years, almost unused. Purchased at the counter of a qualification school. Will be shipped in the included case, wrapped in bubble wrap. Recommended for those who need it for qualification exams or practical work. ------- From calculator beginners to those preparing for calculator/bookkeeping exams, or for tax accountant/certified public accountant exams, this is a professional calculator that can be used directly in practice. It features an easy-to-read display, high-speed operation, quietness, and durability, and uses both solar power and a lithium battery. It's a semi-permanent ECO calculator. ◆ Calculation Functions: Addition, subtraction, multiplication, division, constant calculation, percentage calculation (ratio, markup, discount, ratio, rate of change, selling price setting, profit calculation, etc.), square root calculation, total calculation, truncation/rounding calculation, add-mode calculation (calculation specifying the second decimal place), day calculation, time calculation, approximate calculation, and other mixed calculations ◆ Calculation Digits: 12 digits for input, 12 digits for sum, difference, product, quotient, root, and memory, 24 digits for approximation ◆ Memory: 1 independent memory and 1 GT memory ◆ Decimal Point System: Floating system with priority to higher digits, specification (truncation/rounding), or specification to the second decimal place (add-mode calculation) ◆ Fraction Processing: 0, 2, 3, 4, 5 decimal places can be specified ◆ Display Contents: Memory (M・GT), Error (E), Negative sign (-), Constant (K), Equal (=), Day calculation symbol, each status symbol of calculation instructions, and display with a 3-digit separator for the integer part ◆ Errors: Approximate answer and calculation stops after the "E" symbol lights up