The Wayback Machine - https://web.archive.org/all/20041208113449/http://kidbow.com:80/shipping_cost_question.htm

KidBow.com - Bows and Arrows for kids

Traditional Sports Equipment for Youth Archery

"How will I know what Shipping and Taxes will cost"

The only way to find the answer to this question is for you to tell us:
#1) What you want, 
#2) Where you want it sent, and 
#3) How quickly you want it. 
Also, sometimes people have a special carrier in mind. We generally ship via U.S. Post Priority Mail, as this is the best for time, price and reliability. Delivery is almost always two to three days within the continental United States.

The Massachusetts sales tax  (5%) must be charged only to sales made to Massachusetts residents. Otherwise, there is no tax on any sale.

We can let you know what shipping and tax (if any?) only when we know where you would like where you'd like your order sent. So, if you can email or telephone (781)447-4520) that info, we'll be happy to give you a definite answer. 

Each order is individual (weight, length, distance that it has to travel, customer's preferred carrier, etc). An order for an 8 ounce book sent to New York will have an entirely different cost than a 20 pound box of arrows with $500.00 insurance sent by overnight UPS to California. Similarly, a 72" bow weighing only 3 pounds will cost considerably more to send than a 60" bow of the same weight, because shippers have special "dimenensional weight" formulas for very long or very wide packages. 
In other words, each order has unique properties, and there is absolutely no way to calculate that on a computer. 

Old fashioned? Yes, but it works, and why fix it if it ain't broke?