How to prevent joomshopping from rounding calculated tax value?`

How to prevent joomshopping from rounding calculated tax value?

I need accurate tax amount but the shop will round it after calculation.
For example :
Price = $150
Tax rate is 9%
Calculated tax is : $14
But the accurate amount is : $13.5
How can i prevent the application from rounding it?

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Aw: How to prevent joomshopping from rounding calculated tax value?`

Configuration / currency ?

Aw: How to prevent joomshopping from rounding calculated tax value?

Thank you , i have changed the decimals from 0 to 2 and the problem solved.