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:
| currency       | 2012   | 2011   | 2010   |
|:---------------|:-------|:-------|:-------|
| real           | $ 40.4 | $ 42.4 | $ 32.5 |
| euro           | 27.1   | 26.4   | 18.6   |
| pound sterling | 18.5   | 17.6   | 9.0    |
| indian rupee   | 4.3    | 3.6    | 2.6    |
| total impact   | $ 90.3 | $ 90.0 | $ 62.7 |

Question:
what was the percentage change in the impact of the euro on earnings from 2010 to 2011?


pre_text: .
post_text: the impact on earnings of the foregoing assumed 10% ( 10 % ) change in each of the periods presented would not have been significant .
revenue included $ 100.8 million and operating income included $ 9.0 million of unfavorable foreign currency impact during 2012 resulting from a stronger u.s .
dollar during 2012 compared to 2011 .
our foreign exchange risk management policy permits the use of derivative instruments , such as forward contracts and options , to reduce volatility in our results of operations and/or cash flows resulting from foreign exchange rate fluctuations .
our international operations' revenues and expenses are generally denominated in local currency , which limits the economic exposure to foreign exchange risk in those jurisdictions .
we do not enter into foreign currency derivative instruments for trading purposes .
we have entered into foreign currency forward exchange contracts to hedge foreign currency exposure to intercompany loans .
as of december 31 , 2012 , the notional amount of these derivatives was approximately $ 115.6 million and the fair value was nominal .
these derivatives are intended to hedge the foreign exchange risks related to intercompany loans , but have not been designated as hedges for accounting purposes. .
label: 0.41935000000000006
qa: answer: 42%
ann_table_rows: 2
steps: op: minus1-1
arg1: 26.4
arg2: 18.6
res: 7.8
op: divide1-2
arg1: #0
arg2: 18.6
res: 42%
program: subtract(26.4, 18.6), divide(#0, 18.6)
gold_inds: table_2: currency the euro of 2012 is 27.1 ; the euro of 2011 is 26.4 ; the euro of 2010 is 18.6 ;
exe_ans: 0.41935000000000006
tfidftopn: text_1: the impact on earnings of the foregoing assumed 10% ( 10 % ) change in each of the periods presented would not have been significant .
table_5: currency The total impact of 2012 is $ 90.3 ; The total impact of 2011 is $ 90.0 ; The total impact of 2010 is $ 62.7 ;
program_re: divide(subtract(26.4, 18.6), 18.6)
model_input: table_2
currency the euro of 2012 is 27.1 ; the euro of 2011 is 26.4 ; the euro of 2010 is 18.6 ;
table_5
currency the total impact of 2012 is $ 90.3 ; the total impact of 2011 is $ 90.0 ; the total impact of 2010 is $ 62.7 ;
text_3
dollar during 2012 compared to 2011 .