Market size
To calculate the size of the market, you can use data from government statistics, industry bodies, trade associations, business media, trade publications and web resources, as well as data from various surveys. The Mafpels management's marketers always carefully calculate these aspects to avoid unnecessary risks and losses at the start.
Marginality
If you produce or buy something for 10 euros, it is not profitable at all to sell it for 12 euros. Even if you have very large batches. Try to sell at least 3-4 times the price. This does not mean that you will keep all the difference. You will have to pay taxes, invest in advertising, pay staff, etc. If you are a beginner and have a small business, you need a product with a maximum margin so that you can cover all your costs.