How to round discount unit price to 2 Decimal before it is multiplied with Quantity

Summary:

Manage Currency :

Precision :2

Extended Precision : 2

Manage Rounding Rule : Rounding to Precision, Round to : 2, Direction : Standard

We have a SO with item : 0299.388903 (Unit price in price list : 19.40), Quantity 1600

First Discount : Discount Percent : 2% [2% of 19.4 = 0.388 ]

Second Discount : Discount Percent : 3% [3% of 19.4 = 0.582]

Now the requirement is that the calculations should happen like this 1600 *0.58 = 928, BUT it is currently happening like this : 0.582* 1600= 931.20 , similarly as per the requirement it should calculate like 0.39 *1600 = 624, BUT it calculates like this : 0.388 * 1600 = 620.80

Version (include the version you are using, if applicable):

22B