MathematicsBeginner

Taxes and interest

Tax on income, interest on principal

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Core concepts

Formulas

应纳税额=收入×税率,利息=本金×利率×时间\text{应纳税额} = \text{收入}\times\text{税率},\qquad \text{利息} = \text{本金}\times\text{利率}\times\text{时间}

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