◆I can perform tax-included 税抜計算 of the tax calculation consumption tax. I can set the tax rate freely, too and display the amount of tax. ◆I can do an addition, subtraction, multiplication and division calculation of the calculation time, memory calculation, a percentage calculation at time. Working hours calculation" is convenient for "hourly wage calculations". ◆I can confirm the use situation of calculation and the memory function of the calculation state indication addition, subtraction, multiplication and division operation by indication. ◆Even if I am calculating, and light is shut out unlike the electronic calculator with the solar cell of T, W P (combination of solar cell and supporting battery) before, I protect calculation contents by a built-in battery. ■ Specifications ■ The number of the indication figures: Ten columns The number of the memory: 1 Body size (about): Width 70* depth 118* 8.4mm in height Mass: Approximately 50 g A power supply: TWO WAY POWER (the number of LR1130 batteries: 1)