Compare 25.25-28.

The priest shall compute the valuation for it: this may also be understood to mean “the priest shall calculate the value for him,” but this is followed only by New Jerusalem Bible. Actually the calculation is both “of it [the field]” and “for him [the owner].” In some languages it will be possible to make these both explicit in translation.

The man: literally “he,” but the pronoun needs to be made more explicit, because there may be a danger of confusion with the priest mentioned at the beginning of the verse.

On that day: on the same day that the price was fixed by the priest, the man was expected to make the payment.

A holy thing to the LORD: or “belonging to the LORD.” See 19.8.

Quoted with permission from Péter-Contesse, René and Ellington, John. A Handbook on Leviticus. (UBS Helps for Translators). New York: UBS, 1990. For this and other handbooks for translators see here .