Five shekels apiece was the price to be paid for the redemption of a first-born a month old, Numbers 18:15,16; but this money, though paid for these 273 persons, was probably paid out of the common stock of all, except lots were cast who should pay, which is not probable in so small a concern accompanied with so much trouble.
Related Commentaries of Numbers 3:47
Numbers 3:47
47 Thou shalt even take five shekels apiece by the poll, after the shekel of the sanctuary shalt thou take them: (the shekel is twenty gerahs:)