# Indictors generating Zero

Hi,

I am trying to create an indicator of type number which gives me the sum of element A and B Minus element C.

I will trigger a village once and get the number of Households and then check weakly if they have built a toilet.

Form A Yearly:- Elements :- Number of Households (Option Those with Toliets and Those without) -:–This element is taken during once but i will for the next 4 weeks check if those without toilets have built a toilet.

Form b Weekly:- Element:- Number of HH that have built new toilet

Hence my inidicator:- Balance of HH without toilets = Number of HH (Without toilets)-Number of HH that have built Toilets (Sum or aggregated over the weeks)

The formula does not seem to get any result

Cheers

Hi Felix,

regards,

Lars

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On Nov 26, 2013 10:52 AM, “Felix Obareh” fobareh@softcall.co.ke wrote:

Hi,

I am trying to create an indicator of type number which gives me the sum of element A and B Minus element C.

I will trigger a village once and get the number of Households and then check weakly if they have built a toilet.

Form A Yearly:- Elements :- Number of Households (Option Those with Toliets and Those without) -:–This element is taken during once but i will for the next 4 weeks check if those without toilets have built a toilet.

Form b Weekly:- Element:- Number of HH that have built new toilet

Hence my inidicator:- Balance of HH without toilets = Number of HH (Without toilets)-Number of HH that have built Toilets (Sum or aggregated over the weeks)

The formula does not seem to get any result

Cheers