| Calculating Square Foot Price: |
(roll length in feet) x 12 x (width in inches) ÷ 144 x (square foot price) = price per roll
example - lets calculate the cost of a 12.2" x 100' roll of film (based on a sq ft price of .80¢):
100 (length of film in feet) x 12 x 12.2 (width of film in inches) ÷ 144 = 101.67
101.67 x .80 (sq ft price of film) = 81.33 |