For the following salary rules these are example values that result in a GROSS amount for which the computed salary was incorrect:

Code BASIC, Category BASIC

result = inputs.quantity.amount * contract.wage = 38.25 * 17.51 = 669.76

Code: OT2, Category: ALW

result = inputs.OT2.amount * contract.wage * 2 = 10.75 * 17.51 * 2 = 376.47

Code: GROSS

result = categories.BASIC + categories.ALW = 1046.22

Expected result for GROSS is: 669.76 + 376.47 = 1046.23

It seems as if Odoo is finding gross by recomputing both the BASIC and OT2, summing the full amounts and then truncating to two decimal places:

(38.25 * 17.51) + (10.75 * 17.51 * 2) = 1046.2225

which truncates to 1046.22

This is a more precise result but when these values are shown on the payslip it will appear incorrect.

Could this be an error in my configuration or is this the current behavior of Odoo?