Question

I have written this function that will give me a monthly sum for two columns: one has the date of each order, one has the cost of each order.

=SUMIF($C$1:$C$1000,">="&DATE(2010,6,1),$D$1:$D$1000)-SUMIF($C$1:$C$1000,">="&DATE(2010,7,1),$D$1:$D$1000)

Using data like this:

8/16/10 17:00 7.99
8/16/10 14:25 7.99 
8/15/10 22:42 7.99

I end up with a table like this:

May     998
June    968.28
July   1239.76
August  514.96

However, now I would like to do daily sums and using my way I have to hand edit each row.

How can I do this better in Excel?

Answer 1

Use a column to let each date be shown as month number; another column for day number:

      A      B       C         D
   -----  ----- ----------- --------
1     8      6    8/6/2010   12.70
2     8      7    8/7/2010   10.50
3     8      7    8/7/2010    7.10
4     8      9    8/9/2010   10.50
5     8     10   8/10/2010   15.00

The formula for A1 is =Month(C1)

The formula for B1 is =Day(C1)

For Month sums, put the month number next to each month:

      E      F         G     
   -----  ----- -------------  
1     7    July   $1,000,010 
2     8     Aug   $1,200,300 

The formula for G1 is =SumIf($A$1:$A$100, E1, $D$1:$D$100). This is a portable formula; just copy it down.

Total for the day will be be a bit more complicated, but you can probably see how to do it.