Wilson bought three acres of land for a total price of $140,000. Several years later, the land was sold to Ammerson for $200,000. Ammerson paid $40,000 in that year and then an additional $80,000 payment each year until the debt was paid off. Wilson qualified to use the installment sales method on this sale for income tax purposes. Interest is calculated separately. In the year of the sale, what profit will Wilson recognize in computing taxable income