The document outlines a sanitation ladder with different latrine options at increasing costs, ranging from open defecation at Kshs 0 to a best practice latrine for Kshs 2,500-7,000. A functional latrine costs Kshs 7,000 while an improved latrine with handwashing and a pit cover adds those items for Kshs 500. A smile latrine provides an improved latrine with a Sato pan for Kshs 2,500.