I cannot figure out what function to use to do the following:
For example, if I have data like this:
Criteria
Sale $ # Sales <500
50 3 501 -999
39 1 1000-2499
1000 4 2500+
1200 1
1550 3

I would like to know how to sum all the data in the # sales column according
to the criteria based on Sale $. In other words, what is the total # of
sales that were made < $500, between 501 and 999, between 1000 and 2499, etc.

I'd prefer to do it by putting the upper and lower bounds of the criteria in
2 columns and using that as I want to use these criteria repeatedly to sum
various ranges of data; however, any suggestions at all that will work are
appreciated.

thanks-