Cross reference
Genesis 23:15
15 "My lord, listen to me. What is a piece of land worth four hundred shekels of silver between me and you? Therefore bury your dead."
Ezekiel 45:12
12 The shekel shall be twenty gerahs. Twenty shekels plus twenty-five shekels plus fifteen shekels shall be your mina.
Exodus 30:13
13 They shall give this, everyone who passes over to those who are numbered, half a shekel after the shekel of the sanctuary; (the shekel is twenty gerahs;) half a shekel for an offering to Yahweh.
Exodus 30:15
15 The rich shall not give more, and the poor shall not give less, than the half shekel, when they give the offering of Yahweh, to make atonement for your souls.