# Use higher/more internal DECIMAL PRECISION when calculating GRADUATED prices? | Shopware 5

**URL:** https://forum.shopware.com/t/use-higher-more-internal-decimal-precision-when-calculating-graduated-prices-shopware-5/72441
**Category:** Programmierung
**Created:** [31. Januar 2021 um 13:20 UTC](https://forum.shopware.com/t/use-higher-more-internal-decimal-precision-when-calculating-graduated-prices-shopware-5/72441 "2021-01-31T13:20:18Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![pzdev990](https://avatars.discourse-cdn.com/v4/letter/p/bc79bd/32.png) [@pzdev990](https://forum.shopware.com/u/pzdev990)
#### Post date: [31. Januar 2021 um 13:20 UTC](https://forum.shopware.com/t/use-higher-more-internal-decimal-precision-when-calculating-graduated-prices-shopware-5/72441/1 "2021-01-31T13:20:18Z")

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Hello everyone,&nbsp;

we have certain products that have graduated prices.  
That means:&nbsp;the more a customer buys the cheaper one piece of what he buys should be.

So far so good, the problem i’m having which is problem X is that we have fixed gross prices for certain amounts.  
so we have 10, 20, 30, 40, 50 … pieces.  
Lets say 30 pieces should cost exactly 173.48 € gross.

In shopware i can only specify graduated prices  
with netprice  
on one piece

so i would need to remove the VAT from my gross 173.48€  
173.48 / 119 \* 100 =&nbsp;145.781512605  
and now i need to have the price of only one product.  
145.781512605 / 30 =&nbsp;4.8593837535

I can enter a price with higher decimal precision than 2 in the database, so i did that!  
But shopware still seems to calculate with a rounded price of one piece, the price that will also be shown to the user.

so instead of calculating internally with&nbsp;4.8593837535 it calculates with 4.86  
4.86€ \* 30 =&nbsp;145.8€ net  
adding VAT&nbsp;145.8€ \* 1,19 =&nbsp;173.502€

so i end up with&nbsp;173.50 altough it should be&nbsp;173.48  
those are only 2 cents, but these amounts can grow to huge numbers.

Here comes Problem Y with which i thought to solve Problem X, increase internacl decimal precision in calculations.  
My question to Problem Y, where can i do so?

And if there is a better solution for Problem X what would it be?

Thank you for reading and any help !! \<3