These seems like something very simple, but search as I might I just can\'t get past it.
I have a CSV file like this:
Day,Event,Value 1,\"Rent\",500
Make a garbage value and read in the first 2 values and "trash" them then when reading in the 3rd value add it to your sum. Don't forget that initially you need to ignore the first 3 values of the file since it will pick up the headers.