| 摘要 |
<p>An automatic tax calculating apparatus comprising a tax amount data memorizing unit for memorizing tax amounts of an unproportional portion "a" and tax amounts of a proportional portion "b" of the lowest range, a WT memorizing unit for memorizing a proportional portion repeated money amount W and a step number T of said proportional portion "b", a register for memorizing a taxable money amount a, a register for memorizing a maximum money amount of A of an unproportional portion, a register for storing a repeated number N of the proportional portion repeated money amount W by storing the result of a calculation of a-A, a register for memorizing a product E of said repeated number N and said step number T, and a calculating unit for calculating said product and for retrieving from said tax amount data memorizing unit a money amount obtained by subtracting a product of said proportional portion repeated money amount W and said repeated number N from said taxable money amount adding said tax amount and a product E of said repeated number N and said step number T.</p> |
