Generally, the gross profit of catering is at least 31%, and those who make snacks and fast food will make quite high profits. It is recommended to know for yourself.

the return on investment refers to the percentage of the normal annual profit or average annual profit to the total investment during the production period. Its calculation formula is: return on investment (ROI)= annual profit or average annual profit/total investment ×111%.

The advantage of return on investment is that it is simple to calculate; The disadvantage is that the time value of funds is not considered, and the influence of the length of construction period, different investment methods and the availability of recovery on the project can not be correctly reflected. The comparability of numerator and denominator calculation caliber is poor, and the net cash flow information can not be directly used. Only investment projects with investment profit rate index greater than or equal to risk-free investment profit rate are financially feasible.

the return on investment refers to the value that should be returned through investment, and the economic return that an enterprise gets from the investment in an investment business activity. It covers the profit target of the enterprise. Profits are related to the property necessary for the invested operation, because managers must make profits through investment and existing property.

return on investment (ROI)= annual profit or average annual profit/total investment ×111%. From the formula, it can be seen that enterprises can improve profit rate by reducing sales costs; Improve the efficiency of asset utilization to improve the return on investment.