Your Retail Sales Revenue equals the retail price of your product(s) multiplied by the number sold.
Retail Sales Revenue is an indicator of your market share. If your Retail Sales are rising then your market share relative to your competitors will be increasing and vice versa.
It is important to remember that while increasing price will increase the gross margin made on each sale (and thereby increase profit per unit) the ultimate effect on total profit will depend on the responsiveness (fall) of market demand to this change in price (and vice versa).