Finding the exact price on a strip of fabric that came from one yard?

Question

I have bolts of fabric that are 58" long.  I have the price of fabric per yard.  I need to break it down to find out exactly how much it cost for one particular strip of fabric that came from that yard (example: 3" strip that is 26" long.  The width and length of the fabric strips vary - so I need a formula that will work.

Thanks!

Anonymous · Accepted Answer

58" x 36" = 2088 sq inches.  
Therefore the fabric costs $price/2088 per square inch. -- let's say $10 per yard, so:
$10.00/2088 sq inches = $00.0048/sq inch

Square inches of fabric strip = length x width in inches -- for your example, 3"x26" = 78 square inches

Multiply cost per square inch by number of square inches in strip:
$0.0048x78=$0.3744

You can use the algorithm above easily with any price and sizes; figure the number of square inches in the yard goods, compute price per square inch, multiply price per square inch by the square inches in a strip.

Facia Face · Answer

Use fractions. For instance if you know the cost of a yard (36 inches) then you can find the cost of 26 inches by multplying 26/36 * price
same goes for differing widths. just multiply by the appropriate fraction.

Finding the exact price on a strip of fabric that came from one yard?

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