Calculate

…he shall calculate the years since its sale, repay the balance to the man to whom he sold it, and return to his property.

If only a few years remain until the Year of Jubilee, he is to calculate and pay his redemption according to his remaining years.

But if he consecrates his field after the Jubilee, the priest is to calculate the price in proportion to the years left until the next Year of Jubilee, so that your valuation will be reduced.

…then the priest shall calculate for him the value up to the Year of Jubilee, and the man shall pay the assessed value on that day as a sacred offering to the LORD.

Here is a call for wisdom: Let the one who has insight calculate the number of the beast, for it is the number of a man, and that number is 666.