Start with the item price, then add shipping, taxes, mandatory fees, currency conversion, and accessories required to use it. Compare that final payable amount across sellers, matching the same variant and condition.
Returns and warranty terms are not always easy to convert into one number, but they belong beside the total. A seller with a lower sticker price may charge more to ship or make a return difficult. Use price history for context, then verify the checkout amount before paying.
Do not compare an advertised price from one store with the checkout total from another.
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