Sales order Item -Amount calculation

[johnskywalker]

Hi have you tried doing this in Doc Events?

try making a python script that calculates and then put it here.

doc_events = {
    "Doctype": {
        "after_insert": "path.to.your.python.script.method"
    },
    "Another Doctype": {
        "after_insert": "path.to.your.other.python.script.method"
    }
}