Dear:
In my website, the tax's price is calculated based on the shipping price but not product's price, for example, if the product's price is $8, shipping price is $10 and tax price is 10%, then I will get a tax with the price $1($10 * 10%).
I have no idea about the reason because at first I know the calculation's result is right(I mean the result is based on product's price).
But now the result is based on shipping's price.
Would you please do me a favor to show me what is my fault?
This puzzles me so much!
Thank you a lot!
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