# Painless script - percentage calculation - returns 0 always due to decimals

**URL:** <https://discuss.elastic.co/t/painless-script-percentage-calculation-returns-0-always-due-to-decimals/338875>\
**Category:** Elasticsearch\
**Tags:** painless\
**Created:** [July 20, 2023, 12:08pm UTC](https://discuss.elastic.co/t/painless-script-percentage-calculation-returns-0-always-due-to-decimals/338875 "2023-07-20T12:08:50Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Jayakrishna\_Manokara](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jayakrishna_manokara/32/122851_2.png) [@Jayakrishna\_Manokara](https://discuss.elastic.co/u/Jayakrishna_Manokara)\
**Post date:** [July 20, 2023, 12:08pm UTC](https://discuss.elastic.co/t/painless-script-percentage-calculation-returns-0-always-due-to-decimals/338875/1 "2023-07-20T12:08:50Z")

</div>

Hi,  
I am trying to calculate percentage.

```auto
"script": {
	"source": """
	return [ctx.payload.first.aggregations.success_count.doc_count / (ctx.payload.first.aggregations.success_count.doc_count + ctx.payload.first.aggregations.failure_count.doc_count) * 100)]
	""",
	"lang": "painless"
}

```

But it always returns zero which I assume is due to decimal places during the calculation.  
Basically, 4/(4+6)\*100 should return 40.  
Kindly let me know how to fix this.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 17, 2023, 12:08pm UTC](https://discuss.elastic.co/t/painless-script-percentage-calculation-returns-0-always-due-to-decimals/338875/2 "2023-08-17T12:08:59Z")

</div>

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