Multiple Regression Equation Analysis for Percentage?


I am hoping someone can help me understand something. I have the following multiple regression equation (note thse numbers are just an example and not the actual equation).

Forecasted sales = 2000+17(x1)+65(X2)-34(x3)

Sales is forecasted in 1000's.

x1 = sq feet
x2 = % of people with no cars
x3 = gender

my values are:

x1 = 120
x2 = 44%
x3 = male (0)

My problem is i don't understand how i can use the % of people with no cars in this equation? Would I do .65(.44) or would it be 65%(44%)? I understand that we are saying for each additional percentage we can expect sales to increase by 65%. Can someone please help me understand how to figure this out?

Thank you.


Ambassador to the humans
No worries.

To answer your question... we can't answer your question. It entirely depends on if the variable was coded with 44% as .44 or if it was coded as 44 when the model was fit. This isn't information we have. Regardless the 66 will stay as a 66 though so it will either be 66*(.44) or 66*(44)

My guess would be that it was coded with 44% as 44 though.
I attached my actual data, I apologize I should have done this before but I wasn't sure if it was frowned upon. Was my interpretation for that variable correct? For each additional percentage we would expect sales to increase by 65%? The reason I ask is because when solving my equation I'm not sure if I should simply add up my data and that is my forecasted sales, or if I should add up my data excluding the percentage, then multiply my forecasted sales by that percentage, and add that amount to my sales. Thanks again for the help I really appreciate it.