Yep!
Thats exactly what I did - so glad I did it correctly.
So in my map legend, when I have a color ramp from red to blue (high density to low density), I will put the highest value at the top (next to the red). This highest value is 336.5979. So what are the units of this number? 336.5979 ?/sq mile? (see attachment)
Sorry, I just know that my client is going to ask and I need to be sure.