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:
| ( $ in millions except per share amounts )   | year ended december 31 2014 1st qtr   | year ended december 31 2014 2nd qtr   | year ended december 31 2014 3rd qtr   | year ended december 31 2014 4th qtr ( 3 )   |
|:---------------------------------------------|:--------------------------------------|:--------------------------------------|:--------------------------------------|:--------------------------------------------|
| sales and service revenues                   | $ 1594                                | $ 1719                                | $ 1717                                | $ 1927                                      |
| operating income ( loss )                    | 159                                   | 181                                   | 171                                   | 144                                         |
| earnings ( loss ) before income taxes        | 132                                   | 152                                   | 144                                   | 79                                          |
| net earnings ( loss )                        | 90                                    | 100                                   | 96                                    | 52                                          |
| dividends declared per share                 | $ 0.20                                | $ 0.20                                | $ 0.20                                | $ 0.40                                      |
| basic earnings ( loss ) per share            | $ 1.83                                | $ 2.05                                | $ 1.97                                | $ 1.07                                      |
| diluted earnings ( loss ) per share          | $ 1.81                                | $ 2.04                                | $ 1.96                                | $ 1.05                                      |

Question:
what was the operating margin in the 4th quarter


pre_text: .
post_text: ( 3 ) in the fourth quarter of 2014 , the company recorded a $ 47 million goodwill impairment charge .
item 9 .
changes in and disagreements with accountants on accounting and financial disclosure item 9a .
controls and procedures disclosure controls and procedures the company's management , with the participation of the company's chief executive officer and chief financial officer , has evaluated the effectiveness of the company's disclosure controls and procedures ( as defined in rules 13a-15 ( e ) and 15d-15 ( e ) under the securities exchange act of 1934 , as amended ( the "exchange act" ) ) as of december 31 , 2015 .
based on that evaluation , the company's chief executive officer and chief financial officer concluded that , as of december 31 , 2015 , the company's disclosure controls and procedures were effective to ensure that information required to be disclosed in reports the company files or submits under the exchange act is ( i ) recorded , processed , summarized and reported within the time periods specified in sec rules and forms , and ( ii ) accumulated and communicated to management to allow their timely decisions regarding required disclosure .
changes in internal control over financial reporting during the three months ended december 31 , 2015 , no change occurred in the company's internal control over financial reporting that materially affected , or is reasonably likely to materially affect , the company's internal control over financial reporting. .
label: 0.07473
qa: answer: 7.5%
explanation: the operating margin is the operating income divide by the revenues
steps: op: divide2-1
arg1: 144
arg2: 1927
res: 7.5%
program: divide(144, 1927)
gold_inds: table_3: ( $ in millions except per share amounts ) the earnings ( loss ) before income taxes of year ended december 31 2014 1st qtr is 132 ; the earnings ( loss ) before income taxes of year ended december 31 2014 2nd qtr is 152 ; the earnings ( loss ) before income taxes of year ended december 31 2014 3rd qtr is 144 ; the earnings ( loss ) before income taxes of year ended december 31 2014 4th qtr ( 3 ) is 79 ;
table_1: ( $ in millions except per share amounts ) the sales and service revenues of year ended december 31 2014 1st qtr is $ 1594 ; the sales and service revenues of year ended december 31 2014 2nd qtr is $ 1719 ; the sales and service revenues of year ended december 31 2014 3rd qtr is $ 1717 ; the sales and service revenues of year ended december 31 2014 4th qtr ( 3 ) is $ 1927 ;
exe_ans: 0.07473
tfidftopn: table_2: ( $ in millions except per share amounts ) The operating income ( loss ) of year ended december 31 2014 1st qtr is 159 ; The operating income ( loss ) of year ended december 31 2014 2nd qtr is 181 ; The operating income ( loss ) of year ended december 31 2014 3rd qtr is 171 ; The operating income ( loss ) of year ended december 31 2014 4th qtr ( 3 ) is 144 ;
program_re: divide(144, 1927)
model_input: table_1
( $ in millions except per share amounts ) the sales and service revenues of year ended december 31 2014 1st qtr is $ 1594 ; the sales and service revenues of year ended december 31 2014 2nd qtr is $ 1719 ; the sales and service revenues of year ended december 31 2014 3rd qtr is $ 1717 ; the sales and service revenues of year ended december 31 2014 4th qtr ( 3 ) is $ 1927 ;
table_2
( $ in millions except per share amounts ) the operating income ( loss ) of year ended december 31 2014 1st qtr is 159 ; the operating income ( loss ) of year ended december 31 2014 2nd qtr is 181 ; the operating income ( loss ) of year ended december 31 2014 3rd qtr is 171 ; the operating income ( loss ) of year ended december 31 2014 4th qtr ( 3 ) is 144 ;
table_4
( $ in millions except per share amounts ) the net earnings ( loss ) of year ended december 31 2014 1st qtr is 90 ; the net earnings ( loss ) of year ended december 31 2014 2nd qtr is 100 ; the net earnings ( loss ) of year ended december 31 2014 3rd qtr is 96 ; the net earnings ( loss ) of year ended december 31 2014 4th qtr ( 3 ) is 52 ;