'Reckon' in the Bible

then shall he reckon the years since the sale thereof, and restore the overplus unto the man to whom he sold it; and so return unto his possession.

And he shall reckon with him that bought him from the year that he was sold to him unto the year of jubile: and the price of his sale shall be according unto the number of years, according to the time of an hired servant shall it be with him.

and if there remain but few years unto the year of jubilee, then he shall reckon with him; according unto his remaining years of service shall he give him back his redemption money.

But if he sanctify his field after the jubile, then the priest shall reckon unto him the money according to the years that remain, even unto the year of the jubile, and it shall be abated from thy estimation.

Then the priest shall reckon unto him the worth of thy estimation, even unto the year of the jubile: and he shall give thine estimation in that day, as a holy thing unto the LORD.