Hi Jason
in C1 put =A1*1.04
In A2 put =C1
Copy both down as far as you ned.
"Jason" wrote:

How would I make a Fx. that would add $500 + 4% interest each mouth?
A1 B1 C1
ie 500 +4% =
=+500 +4% =
=+500 +4% =