It is difficult to answer this question unequivocally. The cost depends on the weight of the package and the country of the buyer.
You can make a trial order, but if the price does not suit you, simply refuse to pay. Be prepared for the fact that you will have to pay in Russian rubles (take an interest in the exchange rate in advance).
I would be grateful if you inform me when you refuse to purchase, so that I can put up the figures for sale again.