Genesis 37:26-28

26Then Judah said to his brothers, “What profit is it aif we kill our brother and conceal his blood? 27Come, let us sell him to the Ishmaelites, and blet not our hand be upon him, for he is our brother, our own flesh.” And his brothers listened to him. 28Then cMidianite traders passed by. And they drew Joseph up and lifted him out of the pit, and dsold him to the Ishmaelites for twenty shekels
A  shekel was about 2/5 ounce or 11 grams
of silver. They took Joseph to Egypt.

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