Something like this:

=IF(C1<100000,rateA,IF(C1<=150000,rateB,IF(C1<=200 000,rateC,rateD)))*C1

Not sure exactly what happens if C1=$100,000, as your description is
ambiguous.

Hope this helps.

Pete

On Sep 28, 12:22 am, C.C. wrote:
I need a formula that will multiply the value by one of four interest rates,
depending on the size of the value. In other words, if the value is under
$100,000, muliply by rate A. If the value is over $100,000 muliply by rate B.
If over $150,000 muliply by rate C. And if over $200,000 muliply by rate D.
And the value I'm speaking of is the Sum of A and B.

A1+B1=C1 Depending on the value in C1, I need it muliplied by the
appropriate rate as explained above. I appreciate any help you can offer me.
--
Thank You,
C.C.