A seller who makes a mistake in calculating [the total amount due] - unintentionally gives the buyer more or less change [than he is due]; [in this case] should he give [the buyer] the remainder [of...
A seller who makes a mistake in calculating [the total amount due] - unintentionally gives the buyer more or less change [than he is due]; [in this case] should he give [the buyer] the remainder [of...