Exodus 30:13-14

30:13 Everyone who crosses over to those who are numbered is to pay this: a half shekel according to the shekel of the sanctuary (a shekel weighs twenty gerahs). The half shekel is to be an offering to the Lord. 30:14 Everyone who crosses over to those numbered, from twenty years old and up, is to pay an offering to the Lord.

Exodus 30:24

30:24 and twelve and a half pounds of cassia, all weighed according to the sanctuary shekel, and four quarts of olive oil.