I made the following formula:
=IF(AND(F1612,F16<25),(really large formula)/12*(F16-12),0)

F16 is the # of months. What I need to do is be able to calculate only for
the range of months listed, and if the # of months is higher, I need to keep
the calculation to a 12 month period only, not calculate higher with this set
of formulas. I will then have another line with the same basic formula
calculating for the next year range, but only for 25-36 months, and be 0 if
F16 is < 25 months.

Ideas? I can't figure out how to calculate only the months for the ranges-
it keeps calculating more if F16 is greater than the range.

HELP!!