high Fees difference for my product comparing the competitor's product

I have used Amazon calculator during the product research. I have seen the Total fees of that particular product is Rs 221 & after that I have finalised the product, made purchase from a manufacturer. Then I have created listing for my product. In the price preview I have seen that the Total fees for my product is Rs.336 which is 50% higher than the competitior's fees. In such condition I'll be on loss. I have contacted seller support to look into this issue also. But I haven't got the solution. They refused to compare with other products.

So if anyone could help me on this issue pls help.