
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Dongjianghu honey tangerine is a specialty of Chenzhou, Hunan. It has a sweet taste and melts in the mouth. Technology changes life, and online sales are becoming increasingly popular. A certain internet celebrity anchor in Hunan plans to sell 20,000 kilograms of Dongjianghu honey tangerines every day through live broadcasts to help farmers get rid of poverty and become rich. However, the actual daily sales volume may vary from the planned amount. If it exceeds the planned amount, it is recorded as positive; if it falls short of the planned amount, it is recorded as negative. The table below shows the sales situation of tangerines by this anchor during the first week of the live broadcast:

| Day of the Week | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
|-----------------|--------|---------|-----------|----------|--------|----------|--------|
| Tangerine Sales (kg) | +300 | -400 | -200 | +100 | -600 | +1200 | +500 |

$(1)$ How many kilograms more tangerines were sold on the day with the highest sales compared to the day with the lowest sales during the first week of the live broadcast?<br/>$(2)$ If the anchor sells tangerines during the live broadcast at $6$ yuan per kilogram, and the average express delivery cost and other expenses are $2$ yuan per kilogram, how much revenue did the anchor generate for the local farmers in the first week of the live broadcast?

Present the answer in LaTex format: \boxed{Your answer}
user