how to get same rank for same sales combination of different products

[kvr9]

Hi ,

I have a issue in creating a rank  of a  employee who made sales of different products and we need to find the rank of emp with major sales.

Load * inline[

Emp; Sales,prod, sales_id

A,111, bags,1

A,125, PEN,2

B,336,PEN,3

C,225,book,4

D,225,pen,5]

I was using aggr(rank(sum(sales),Emp) able to get the rank correctly when you have same amount with single sales_id but with two id's the rank is not appropriate in total. below is what i am getting

oUTPUT:

Emp Sales Rank

B ,336,1

A,336,2

C,225,3-4

D,225,3-4

Expected output is

Emp Sales Rank

B ,336,1

A,336,1

C,225,3-4

D,225,3-4

Kindly help me in getting desired output