Conyac で依頼された翻訳結果を公開

The shipping cost is too expensive.
Based on my previous experience, I think it should be less than $90.
To be honest, the shipping cost for the last order also seemed too expensive.
Although I did not realize until it arrived because it was the first time I ordered this product, I thought it was too expensive considering the package size and weight.

After reviewing the previous orders, the shipping costs have not been consistent.
It makes it difficult for us to calculate our retail price if we do not know the accurate shipping costs.

I would like to know the shipping costs for each item when ordered separately.
I would like to know that for all products.

Of course, I assume that the shipping cost would be lower if I order multiple items at once, correct?