Let's say your average selling price for your service is 逽ሪ and you have one transaction per year per customer. Using that first years sales example we used above, you would calculate it this way. 造같 divided by 逽ሪ = 968 customers needed for the year. Now if your average transactions per customer are more than 1, then you would need fewer customers. As an example, let's say your average transaction per customers per year is 2Ǒ then 968 divided by 2Ǒ = 387 customers per year. Now let's say you estimate your conversation rate to be 3% of turning leads into paying customers with the advertising method you're going to use, how many leads would need to contact to get 387 customers? Simply divide 387 by 3% and you get 12꽭 leads you're going to need to contact.
Average Selling Price _ Now when you calculate your average selling price which is your cost of sales (material + labor) divided by Ƒ_gross profit), you can determine how many customers you would need and then come up with what you think your conversion rate would be for converting leads to customers, you can determine how many leads you would need. Then from this and with the aid of the U.S. Census Bureau and some basic research on your own you can actually have a pretty decent idea of what size your market is and is going to be in the future so you can see if it will support your business plan or not.