I bought a rare watch for 2000 riyals, I offered it for sale and sold it for 2500 riyals A week later, a second person told you I wish he told me I had bought it from you for 3500 riyals You were greedy. You called the first person who bought it from you, and bought the watch from him for 3000 riyals and sold it to the second person for 3500 riyals. How much did you earn in total