(b) Amount of payment. The replacement housing payment for an eligible 180-day homeowner-occupant may not exceed $22,500. (See also § 24.404.) The payment under this subpart is limited to the amount necessary to relocate to a comparable replacement dwelling within one year from the date the displaced homeowner-occupant is paid for the displacement dwelling, or the date a comparable replacement dwelling is made available to such person, whichever is later. The payment shall be the sum of: