Summing up column starting with specific row

[Anonymous]

Hello! I have this table: 

count	id	sum
15	1	15+10+5+3+1
10	2	10+5+3+1
5	3	5+3+1
3	4	3+1
1	5	1

So I need he "sum" column that will calculate the sum of "count" values starting with current id till the last, not including previous id. Thanks in advance!

[Anonymous · Accepted solution]

Okay, I've figured it out, here is the code:

= CALCULATE(SUM(Count), [Code] >= EARLIER([Code]), ALL(Table) )