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| | | // 1. 根据含税单价和税率计算不含税单价 |
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| | | // 不含税单价 = 含税单价 / (1 + 税率/100) |
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| | | const priceExcludingTax = priceIncludingTax && taxRate |
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| | | ? toFixed(priceIncludingTax / (1 + taxRate / 100), 2) |
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| | | ? parseFloat((priceIncludingTax / (1 + taxRate / 100)).toFixed(2)) |
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| | | : 0; |
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| | | |
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| | | // 2. 计算不含税总价 = 不含税单价 × 数量 |
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| | |
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| | | ? toFixed(priceIncludingTax * quantity, 2) |
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| | | : 0; |
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| | | |
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| | | // 更新表单数据 |
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| | | form.value.priceExcludingTax = priceExcludingTax; |
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| | | // 保证显示为两位小数（如88.5显示为88.50） |
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| | | form.value.priceExcludingTax = priceExcludingTax.toFixed(2); |
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| | | form.value.totalPriceExcludingTax = totalPriceExcludingTax; |
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| | | form.value.totalPriceIncludingTax = totalPriceIncludingTax; |
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| | | }; |
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