Task: Table-QA (source dataset: FinQA)

Task: 
You are given a table containing structured data and a natural language question referring to the table. Your goal is to analyze the table and provide an accurate and concise answer based on the given data.

Instructions:
1. Understand the Table: Examine the structure, headers, and data in the table. Identify relevant columns and rows related to the question.
2. Interpret the Question: Determine whether the question requires direct retrieval, aggregation, comparison, sorting, filtering, or inference.
3. Extract the Answer: Use logical reasoning and numerical operations (if necessary) to derive the correct response from the table.
4. Format the Answer: No explanation, return the answer in a structured JSON format: {"answer": <answer>}. If the question cannot be answered due to missing or ambiguous data, return a JSON response with {"answer": null}.

Table:
| Unnamed: 0                       | 12/31/2007   | 12/31/2008   | 12/31/2009   | 12/31/2010   | 12/31/2011   | 12/31/2012   |
|:---------------------------------|:-------------|:-------------|:-------------|:-------------|:-------------|:-------------|
| united parcel service inc .      | $ 100.00     | $ 80.20      | $ 86.42      | $ 112.60     | $ 116.97     | $ 121.46     |
| standard & poor 2019s 500 index  | $ 100.00     | $ 63.00      | $ 79.67      | $ 91.68      | $ 93.61      | $ 108.59     |
| dow jones transportation average | $ 100.00     | $ 78.58      | $ 93.19      | $ 118.14     | $ 118.15     | $ 127.07     |

Question:
what is the roi of an investment in s&p500 from 2008 to 2009?


pre_text: shareowner return performance graph the following performance graph and related information shall not be deemed 201csoliciting material 201d or to be 201cfiled 201d with the sec , nor shall such information be incorporated by reference into any future filing under the securities act of 1933 or securities exchange act of 1934 , each as amended , except to the extent that the company specifically incorporates such information by reference into such filing .
the following graph shows a five year comparison of cumulative total shareowners 2019 returns for our class b common stock , the standard & poor 2019s 500 index , and the dow jones transportation average .
the comparison of the total cumulative return on investment , which is the change in the quarterly stock price plus reinvested dividends for each of the quarterly periods , assumes that $ 100 was invested on december 31 , 2007 in the standard & poor 2019s 500 index , the dow jones transportation average , and our class b common stock. .
post_text: .
label: 0.2646
qa: answer: 26.5%
ann_table_rows: 2
steps: op: minus2-1
arg1: 79.67
arg2: 63.00
res: 16.67
op: divide2-2
arg1: #0
arg2: 63.00
res: 26.5%
program: subtract(79.67, 63.00), divide(#0, 63.00)
gold_inds: table_2: the standard & poor 2019s 500 index of 12/31/2007 is $ 100.00 ; the standard & poor 2019s 500 index of 12/31/2008 is $ 63.00 ; the standard & poor 2019s 500 index of 12/31/2009 is $ 79.67 ; the standard & poor 2019s 500 index of 12/31/2010 is $ 91.68 ; the standard & poor 2019s 500 index of 12/31/2011 is $ 93.61 ; the standard & poor 2019s 500 index of 12/31/2012 is $ 108.59 ;
exe_ans: 0.2646
tfidftopn: text_2: the comparison of the total cumulative return on investment , which is the change in the quarterly stock price plus reinvested dividends for each of the quarterly periods , assumes that $ 100 was invested on december 31 , 2007 in the standard & poor 2019s 500 index , the dow jones transportation average , and our class b common stock. .
table_3: The dow jones transportation average of 12/31/2007 is $ 100.00 ; The dow jones transportation average of 12/31/2008 is $ 78.58 ; The dow jones transportation average of 12/31/2009 is $ 93.19 ; The dow jones transportation average of 12/31/2010 is $ 118.14 ; The dow jones transportation average of 12/31/2011 is $ 118.15 ; The dow jones transportation average of 12/31/2012 is $ 127.07 ;
program_re: divide(subtract(79.67, 63.00), 63.00)
model_input: table_1
the united parcel service inc . of 12/31/2007 is $ 100.00 ; the united parcel service inc . of 12/31/2008 is $ 80.20 ; the united parcel service inc . of 12/31/2009 is $ 86.42 ; the united parcel service inc . of 12/31/2010 is $ 112.60 ; the united parcel service inc . of 12/31/2011 is $ 116.97 ; the united parcel service inc . of 12/31/2012 is $ 121.46 ;
table_2
the standard & poor 2019s 500 index of 12/31/2007 is $ 100.00 ; the standard & poor 2019s 500 index of 12/31/2008 is $ 63.00 ; the standard & poor 2019s 500 index of 12/31/2009 is $ 79.67 ; the standard & poor 2019s 500 index of 12/31/2010 is $ 91.68 ; the standard & poor 2019s 500 index of 12/31/2011 is $ 93.61 ; the standard & poor 2019s 500 index of 12/31/2012 is $ 108.59 ;
table_3
the dow jones transportation average of 12/31/2007 is $ 100.00 ; the dow jones transportation average of 12/31/2008 is $ 78.58 ; the dow jones transportation average of 12/31/2009 is $ 93.19 ; the dow jones transportation average of 12/31/2010 is $ 118.14 ; the dow jones transportation average of 12/31/2011 is $ 118.15 ; the dow jones transportation average of 12/31/2012 is $ 127.07 ;