One way:

=IF(A1<36,30%,IF(A1<=48,20%, 10%)

where A1 contains the number of months.

In article ,
"Dexter" wrote:

Good morning all!

I need help creating an equation that will do the following.

Here is a line out of a contract that our company has just won. I have a
spreadsheet currently of the current rate, and also the # of months that the
machine has been in place for. However, I'm not sure how to create a
statement based on the following:

Curently placed units in service less than 36 months: 30% discount from
current rate

Units in service from 36-48 months, 20% discount.

Units in service greater than 48 months, 10% discount.

Any help would be greatly appreciated!

Gary