(1-5 cps.) The Recycled Content and Regional Material Calculator for the Concrete Industry (LEED calculator) is an excel-based program which calculates the concrete's contribution to the LEED 2.2 Recycled Content and Regional Material credits, specifically, LEED credits MR 4.1 - Recycled Content, 10% (post-consumer + 1/2 pre-consumer), MR 4.2 - Recycled Content, 20% (post-consumer + 1/2 pre-consumer), MR 5.1 - Regional Materials, 10% Extracted, Processed & Manufactured Regionally, and MR 5.2 - Regional Materials, 20% Extracted, Processed & Manufactured Regionally. The calculator allows input on project information, concrete producer and other applicable information. The program provides the results in a single page letter which can be provided to the LEED Accredited Professional, project manager or building owner. 2009