Study the market

The prices for the goods or service should defray all your expenses and provide acceptable profit. And the size of profit should be sufficient so that it made sense to be engaged in your business.

So, you are interested in establishment of a price as high as it is possible. It is obvious.
Your clientss are not going to pay for the goods or services which you offer more than it worth in their opinion.. This statement doesn`t mean that they will be looking for the chepest goods. They will try to buy the goods they consider to be most suitable for them — meaning that the price will suit them.
At the same time, your competitors will make all efforts to get the maximum profit at your expense. In turn you should try to do the same, only at their expense.
For this purpose you should t let the clients know that they will find what they need at your place and nowhere else. It does not mean that you should reduce the prices of the goods or services you  by all means. We speak about more comfortable environment of shopping for the potential clients.

One of the initial stages of definition of the prices for the goods or services is an making account of the existing prices for the similar goods or services of your competitors.
If your commercial activity is connected services rendering it is still necessary to do the same thing. However, in this case there is a possibility that you will have to meet the competitor personally in order to find out the information you need.
Speak with your friends and ask them whether it is possible to use their name while accomplishing an examination of the market.
Choose five most popular goods or services in order to run a really serious research.. Then visit your competitors and find out the prices for these goods or services. This data will be useful to you for calculation of size of the extra charge to the price of the goods or the services the option which provides your profit.