In response to your peers, ask clarifying questions and state whether you agree with their suggestions.

Some of the variables that can change frequently and can affect sales and profit are shipping, Fuel fluctuates constantly and can either get cheaper or more expensive. When costs go up for transporting goods, you have to raise the sale price to compensate and not lose money. Production prices can fluctuate as well with along the same lines. If the products you need to produce your goods are scarce, this will affect the market and raise prices as well. The products are also likely shipped to you, meaning those transportation costs that went up are adding to the scarce products.