This Practice Note from WSUP (Water and Sanitation for the Urban Poor) describes an Excel-based financial analysis tool which generates reliable costings of different options for achieving 100% sanitation access across low-income and non-low-income areas.
WSUP (2013): 100 percent Access by Design . A Financial Tool for Urban Sanitation. (= Practice Note, PN#009, MAY 2013 ). London: Water and Sanitation for the Urban Poor (WSUP) URL [Accessed: 18.06.2019]