Answer:Here's how to calculate the decrease in price and the percentage of decrease: 1. Calculate the decrease in price: - Original price: 45,000- Price after one month: 30,150- Decrease in price: 45,000 - 30,150 = 14,850 2. Calculate the percentage of decrease: - Percentage decrease = (Decrease in price / Original price) * 100- Percentage decrease = (14,850 / 45,000) * 100- Percentage decrease = 0.33 * 100- Percentage decrease = 33% Therefore: - The decrease in price is 14,850.- The percentage of decrease is 33%.