🛒 单价比较计算器（哪个更划算）Unit Price Comparison
比较不同包装/规格商品的单价，找出最划算的选择。Compare unit prices across package sizes to find the best deal.
使用说明与常见问题How-to & FAQ
「单价比较计算器（哪个更划算）」是什么？What is the Unit Price Comparison?
比较不同包装/规格商品的单价，找出最划算的选择。Compare unit prices across package sizes to find the best deal.
如何使用「单价比较计算器（哪个更划算）」？How do I use the Unit Price Comparison?
在「单价比较计算器（哪个更划算）」中，填写上方字段等参数，结果会随输入实时计算并显示在下方。In the Unit Price Comparison: Fill in the fields above; results are recalculated instantly as you type.
计算结果可以作为最终依据吗？Can I rely on the result?
「单价比较计算器（哪个更划算）」按标准公式计算，结果仅供参考；实际金额以银行、券商或税务机关的规则和四舍五入方式为准。The Unit Price Comparison uses standard formulas and is for estimation only; actual figures depend on your bank, broker or tax authority's rules and rounding.
「单价比较计算器（哪个更划算）」免费吗？需要注册吗？Is the Unit Price Comparison free? Do I need an account?
「单价比较计算器（哪个更划算）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Unit Price Comparison is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.