Traditional Culture Encyclopedia - Hotel reservation - How to quote when the room is full when the cost needs to be increased?

How to quote when the room is full when the cost needs to be increased?

(1) If the price of each room increases by 20 yuan on that day, the hotel room income on that day will be 5 yuan. The price has gone up by 20 yuan, so the daily price is 180 yuan. 20 = 200 yuan. Room rent =100-(5/10) * 20 =100-10 = hotel room income on that day = 200 * 90 = 18000 yuan (2) suppose that each room on that day.