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.