问题描述
在Magento，我收到了一个奇怪的增值税四舍五入问题.我的产品设置是 *含20％增值税的产品价格为183.59
I got strange rounding issue for VAT in Magento. My product set up is * product price incl 20% VAT is 183.59
我在购物篮中添加了30件商品，这将花费30 * 183.59 = 5507.70.我可以在购物篮/结帐中看到此值，这样就可以了.如果我在篮子里只有一件物品就可以了.
I added 30 items into basket and it would cost 30 * 183.59 = 5507.70. I can see this value in basket/checkout so that's fine. If I have just 1 item in basket it's ok.
另外，最终的增值税将是5507.70 * 20/120 = 917.95，但我的收入是918.00
Also the final VAT would be 5507.70 * 20 / 120 = 917.95, but I'm getting 918.00
您是否知道如何解决此问题，或者我应该去哪里看看?预先感谢.
Do you have any idea how to fix this or where would I take a look? Thanks in advance.
推荐答案
最后，我找到了解决方案.我将系统">增值税">基于税额的计算方法"从单价更改为行总计"，并且可以使用，更多详细信息此处
In the end I found the solution. I changed System > VAT > Tax Calculation Method Based On from Unit price to Row Total and it works, more details here
我发现的问题是在core/store模型中.我不得不重写roundPrice方法并在那里更改舍入精度.
The issue which I found is in core/store model. I had to rewrite roundPrice method and change rounding precision there.
public function roundPrice($price)
{
return round($price, 4);
}
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