How to calculate the market share of hotels?

According to the different market scope, there are four methods to measure market share: (1) Total market share, which refers to the proportion of sales of an enterprise in the whole industry. (2) Target market share refers to the proportion of sales volume (amount) of an enterprise in its target market, that is, the market it serves. (3) Three competitors: refers to the ratio of the sales volume of an enterprise to the total sales volume of the three largest competitors in the market. For example, the market share of an enterprise is 30%, and the market shares of its three biggest competitors are 20%, 10% and 10% respectively, then the relative market share of the enterprise is 30%÷40%=75%, and if four enterprises each account for 25%, the relative market share of the enterprise is 30%. Generally speaking, the relative market share of an enterprise is above 33%, which shows that it has certain strength in this market. (4) The biggest competitor: refers to the ratio of the sales volume of the enterprise to the sales volume of the biggest competitor in the market. If it is higher than 100%, the enterprise is the dominant player in this market.