Withholding tax ( automatic round off value)

Hi Experts,

Good day.

I want to check if the behavior of SAP Business One with Withholding Tax Computation is automatically rounding off to nearest value. I noticed that i have  AP Invoice with Taxable Amount of  USD 1,256.24 and the SAP System computed the Withholding Tax Amount to USD 13.00 instead of USD 12.56. How can i disable the SAP Business One Withholding Tax rounding off.

  I done everything Bellow possibility way but still problem

1. i had  done  Rounding by  currency setup.(document wise)

2. Adim-setup - fin- currency- No rounding ( particular currency ) -USD

its possible while posting entry the AP , can we edit manual value in Withholding tax

  SAP 9.0 Indian localization.

please kindly provide my solution asp possible