If you want to join the fast food field, you must choose high-quality brands and master all-round technology. Through the corresponding data survey, it is still certain. The total investment of general fast food chain stores is between10-200,000 people. And his return on income can basically be maintained between 60~80%. In particular, a brand's super-high effect and rich products can expand market sales, which also cultivates a strong income return. To sum up, joining chain stores is profitable for fast food at least!