Help the water meter and water fee problem.

1. Find the property management company to adjust the total water fee of 07.1.1-08.8.20, and see how many tons of water were used during the period.

2. Summarize the water consumption of each sub-table after the summary table.

3. Subtract the water consumption of each water meter from the total water consumption of water meters. This difference is the difference between the water you use and part of the meter. (Because the sum of the sub-table and the total table cannot be absolutely equal, there is a table difference. If there are not too many people stealing water, the table difference will not be too big)