: Provided further, That the amount of any foregone increases in tenant rent payments due to the implementation of such rent incentives implemented on behalf of residents of a project with assistance converted from public housing to project-based rental assistance under section 8 of the United States Housing Act of 1937 ( 42 U.S.C. 1437f ) or assistance under section 8(o)(13) of such Act under the heading Rental Assistance Demonstration in the Department of Housing and Urban Development Appropriations Act, 2012 (title II of division C of Public Law 112–55 ), as amended ( 42 U.S.C. 1437f note) shall be factored into (A) housing assistance payments made pursuant to project-based subsidy contracts provided under the heading Project-Based Rental Assistance