PWCMW: How is the Public Works Contracting Minimum Wage (PWCMW) calculated? ← Prevailing Wage As provided in Section 290.257.2 RSMo., DOLIR will calculate the PWCMW by multiplying the average wage rate in each county by 120%. This average wage rate for each county is annually computed by the Missouri Economic Research and Information Center (MERIC) housed within the Missouri Department of Economic Development (DED).
