# Arithmetic operation in kibana

**URL:** <https://discuss.elastic.co/t/arithmetic-operation-in-kibana/191615>\
**Category:** Kibana\
**Created:** [July 22, 2019, 10:41am UTC](https://discuss.elastic.co/t/arithmetic-operation-in-kibana/191615 "2019-07-22T10:41:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![javidr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/javidr/32/136982_2.png) [@javidr](https://discuss.elastic.co/u/javidr)\
**Post date:** [July 22, 2019, 10:41am UTC](https://discuss.elastic.co/t/arithmetic-operation-in-kibana/191615/1 "2019-07-22T10:41:27Z")

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Hi

I have an index where i am storing a number of items per category every day. I store one document for each category, for example:  
{date:22/07/2019, :status: TOTAL, count: 1000}  
{date:22/07/2019, :status: SOLD, count: 400}  
{date:21/07/2019, :status: TOTAL, count: 800}  
{date:21/07/2019, :status: SOLD, count: 300}

I want to display a line graph that calculates for each day the difference between TOTAL and SOLD. It is, for 21/07/2019, it will display 500, and for 22/07/2019 it will display 600

Initially i wanted to create a scripted field, but, since they are different documents, i realised i could not do that.

Any idea on how can i create this with Kibana?

Thanks

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**Author:** ![bhavyarm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bhavyarm/32/22392_2.png) [@bhavyarm](https://discuss.elastic.co/u/bhavyarm)\
**Post date:** [July 22, 2019, 2:40pm UTC](https://discuss.elastic.co/t/arithmetic-operation-in-kibana/191615/2 "2019-07-22T14:40:32Z")

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Hello,

Do you have strong reasons for creating a document for each category? You can use either timelion or time series visual builder for doing this.

[https://www.elastic.co/guide/en/kibana/current/timelion.html](https://www.elastic.co/guide/en/kibana/current/timelion.html)

Thanks,  
Bhavya

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 19, 2019, 2:40pm UTC](https://discuss.elastic.co/t/arithmetic-operation-in-kibana/191615/3 "2019-08-19T14:40:38Z")

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