Arabica/Robusta ratio

[Coffee Steve]

I am doing some research on coffee blends and would like to have a place to start. Does anyone have any idea what type of ratio grocery store coffees like Folgers or Master Chef use with Arabica and Robusta beans? In other words what is a common percentage of Arabica and Robusta beans in ground coffee?

 

[topher]

I will find out for you today. I have a friend who was a buyer for Proctor and Gamble...he should know.

 

[Coffee Steve]

Any ideas on this yet? Even ballpark numbers would be helpful.
Thanks.