When determining your vending machine’s prices, you’ll want to set prices that are competitive and fair to the consumer but will also ensure you turn a profit. One general rule is pricing your vending product for double the cost that you bought it for. If you purchase a candy bar for 50 cents, for example, you’d sell it for $1. When pricing your products, think about what you need to charge and how many items you need to sell to meet your income goals — and remember to subtract your expenses from your earnings to determine net profit.