The more years there are, ¹  the more you may make its purchase price, and the fewer years there are, ²  the less you must make its purchase price, because he is only selling to you a number of years of ³  produce.

he is to calculate the value of the years it was sold, ¹  refund the balance ²  to the man to whom he had sold it, and return to his property.

If he does not redeem the field, but sells ¹  the field to someone else, he may never redeem it.