Financial amounts: do not use Python floats #3998
Description
How it works
Fields that are used for financial information such as fees and acquisition accounts' amounts use Python floats. However, this is bad practice because Python doesn't manage floats very well and this can create problems with numbers that are poorly rounded (e.g. 145.000000089) and distorts some calculations.
Improvement suggestion
For acquisition amounts, store the data in the database as cents and add the floating point in the ui/api/serializers.