To estimate the price of the 2016 Mazda CX-9 V6 3.7L High+ Premium (Top) with 300,000 km mileage and average condition, I considered the following data points: 1) A similar 2016 model with 247,500 km and average condition sold for 39,000 SAR on 2023-11-09. 2) Another 2016 model with 199,900 km and average condition sold for 48,000 SAR on 2023-10-28. 3) A 2015 model with 283,000 km and average condition sold for 41,000 SAR on 2024-01-17. 4) A 2014 model with 256,000 km and average condition sold for 35,000 SAR on 2024-04-18. 5) The listed prices for similar cars were 40,500 SAR and 47,000 SAR, but these are generally higher than actual selling prices. Considering the higher mileage and average condition of the target car, I adjusted the price downwards from these reference points.