Keeping Track of Prices

Keeping track of prices is extremely beneficial and important as you will feel more confident when buying/selling items, minimising overpaying, or underselling. One way I keep track of item prices is through spreadsheets. The columns are basically: average price, then price at which you want to buy at, as well as prices you want sell at. You can also can note down prices you have actually SOLD and BOUGHT in the past, allowing you to track growth or trends. Here's an example below: