Generally speaking, it is normal for the canteen contracting deduction point to be 20-30. That is to say, if the daily turnover of the canteen is 3,000 yuan, then the money that the school can get every day after deduction should be around 840 yuan (after removing the cost). According to this standard, the deduction of 28 is not expensive.
However, this does not mean that this deduction point is reasonable in all cases. In fact, the factors that determine whether the deduction point is reasonable include but are not limited to:
1. Whether the rights and responsibilities of both parties are fairly distributed.
2. Whether this deduction point is acceptable to both parties.
3. Whether this deduction point is in line with the market situation.
4. The actual operation of the canteen.
Therefore, if you think there is something wrong with this deduction point, you can further communicate with the school and make a judgment after you understand the specific situation.