Answer:
Occupancy Index=111
Explanation:
Occupancy Index is defined ad the measure of a hotel's occupancy rate divided by the occupancy rate of the competitive hotel multiplied by 100:
![INDEX=(Property \ OCC)/(Competitive \ OCC)* 100](https://img.qammunity.org/2021/formulas/mathematics/college/hk5rr4ufuwpxv5y7xf71g94to4itarlj08.png)
-The occupancy rate of the competitive set is calculated as:
![Competitive \ Occupancy\ Rate=(Rooms \ Sold)/(Rooms \ Available)\\\\=(115000)/(150000)\\\\=0.7667\\\\=76.67\%](https://img.qammunity.org/2021/formulas/mathematics/college/1sxnj8iwqfwgo3t60jjy065awpz8d7g98q.png)
The occupancy index is then calculated as follows:
![INDEX=(Porperty \ OCC)/(Competitive \ OCC)* 100\\\\\=(0.85)/(0.7667)* 100\\\\=110.8647\approx 111](https://img.qammunity.org/2021/formulas/mathematics/college/h7j7m6g431odao5piv5y0sucj9j4b0inkt.png)
Hence, the occupancy index is approximately 111