The Total Price Per Square tab manages the other 3 tabs and produces totals 
based on roof pitch and Optionally : Roof removal, Sheathing and Tax .    

All grids contain different colors of cells to aid in entering your data.
You can enter data in all the light gray and calculator cells.
The white and yellow cells are system maintained.

The first time you use Price Per Sq Calculator enter prices per square  for labor, materials, overhead, roof removal, cleanup etc. 

Select Labor-Tearoff tab at the top of the program. Here you will enter your prices per square for installing roofing materials, OSB and roof removal.

    
 Next:
Select the Material Prices tab. Here you enter your material prices per square.

 

  Next:
Select Profit, Overhead tab. Here you will enter your prices for Profit, Overhead and clean up per square.