
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
In a grain storage facility, the following are the amounts of grain (in tons) that were received or dispatched over a period of 6 days (where "+" indicates received and "-" indicates dispatched):  
+26, -32, -15, +34, -38, -20.  
(1) After these 6 days, did the amount of grain in the storage increase or decrease? By how much?  
(2) After these 6 days, when the manager did the settlement, it was found that there were still 480 tons of grain in storage. How much grain was there in the storage 6 days ago?  
(3) If the loading and unloading fee is 5 yuan per ton, how much would the loading and unloading fees be for these 6 days?

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