Sergio sold a rental house he had owned for several years. He claimed $24,787 in depreciation over the years. He claimed the allowable depreciation deduction each year except the first year he owned the house, when he could have claimed $1,342 but failed to do so. In order to determine his gain or loss on the sale, Sergio must now deduct depreciation from his cost to determine his adjusted basis. While other events (such as improvements and casualty losses) may also affect Sergio's basis, what is the amount he must deduct for depreciation?