Thanks Butterfly,
The RT one he did a 3 in sq to start and the 3 x 5.5 ret.
This guy did the 4 in sq with a 7.5 so with that I figured it out...THANK YOU so much. The formula is
whatever the starting sq is x's 2 - 1/2 inch... hope that makes since....
Thanks Again Connie
Hope some of you try this for it is very easy....