According to ECHO's guidance, the indicator's value should be calculated as the average percentage of the following indicators' value:
> % of the population considering that their basic WASH needs are met - guidance on this first indicator can be seen here
> % of the population with adequate hygiene practices (according to SPHERE standards on appropriate use and regular maintenance of facilities and hand washing)
The second indicator's value should be calculated as the average of the following sub-indicators:
> Use of improved sanitation facility
> Maintenance of sanitation facilities
> Hand washing practice (hand washing with soap or ash)
Report to ECHO not only the proportion of the target population with adequate WASH services and hygiene practices but also the value of individual sub-indicators.