SQL help, I have redundant rows and my grouping is not right

Ignition
21

Have a great weekend and thanks so much

22

Maybe post the finished query so it could benefit someone else.

23 
Select top 40 myCode, sum(myQTY) as Quantity, count(myCode) as Count
from testmytable
where (t_stamp > DATEADD(minute, -50, GETDATE())))
Group by myCode
order by sum(myQTY) DESC;

It was like this at the finish

which was really confusing because I thought this had thrown an error on me before

It worked though