To estimate the price of the 2019 Ford Escape I4 2.5L S (Base) with 90000 km mileage, I started by looking at the new car prices. The 2025 Ford Escape S (Base) is priced at SAR 162500. Assuming a 10% depreciation per year, the 2019 model would have depreciated for 5 years, resulting in a depreciation of approximately 50%. This gives an estimated value of SAR 81250 for a new car. Next, I considered the offer accepted for a 2019 Ford Escape SE (Mid) with 134000 km at SAR 41000. Given that the SE (Mid) is a higher trim than the S (Base), the base model should be valued lower. Additionally, the listed price for a similar SE (Mid) variant is SAR 42000. Considering the lower mileage of the car in question (90000 km vs. 134000 km), I adjusted the price upwards slightly but still lower than the SE (Mid) variant. Factoring in all these data points, I arrived at the final estimate.