Incremental sum and date reaches a value

[FabioManniti]

Hello I have a table like this:

user_id	sale	sale_date
a1	100	2022-01-03
a2	120	2022-01-07
a3	140	2022-02-27
a4	160	2022-03-02
b1	300	2022-01-13
b2	90	2022-04-14
c1	100	2022-05-12
c2	250	2022-06-03
c3	400	2022-08-11

I would like to know for each user the minimum date they reach the 300€ sales threshold:

user_id	sale	sum(sale)	sale_date
a1	100	100	2022-01-03
a2	120	220	2022-01-07
a3	140	340	2022-02-27
a4	160	500	2022-03-02
b1	300	300	2022-01-13
b2	90	390	2022-04-14
c1	100	100	2022-05-12
c2	250	350	2022-06-03
c3	400	750	2022-08-11

So, in the end, I can have a table like this:

user_id	goal_date
a1	2022-02-27
b1	2022-01-13
c1	2022-06-03

Can you please help me?
Do I have to do this at the editor level or I can do in the sheet level?

[BrunPierre]

Elaborate on the "sum(sale)" column.