In 2007 Daniel Simon, Manoj Thomas, and Vrinda Kadiyali studied 27,000 real estate deals. They found that buyers pay more when the price of the properties are precise instead of rounded (e.g., $432,179 vs. $450,000)

We use precise numbers when we are dealing with small numbers (1, 3, 5). Therefore if you use a precise number for your price, people will perceive it to be lower.