Sak has a car that can travel 70 km on 250 Baht worth of petrol if he drives in the city and 110 km if he drives on the highway. He drives to Town A from his company in Town B, a distance of 330 km, using the highway and travels a total distance of 210 km within Town A on company business for four days. If the company gives Sak a travelling allowance of 2500 Baht for that business trip, calculate how much Sak has left after deducting his petrol costs. ​