Each of the 12 fields are calculating correctly. Its figuring out how to get the Total Item Count to calculate. For example
field 1 = 15field 2 = 0field 3 = 10field 4 = 12field 5 = 0field 6 = 10field 7 = 10field 8 = 0field 9 = 12field 10 = 10field 11 = 12field 12 = 0
Total item count = 8