Instructions: you will be presented with a context, a question, a arithmetical program about that numerical reasoning. Program is a Numerical Program that will be executed in the Context to generate an Answer. The Context is either Tabular or Textual Data, where the cell values are divided based on a specific delimiter. Read the Context and Program thoroughly and generate only the correct numerical answer from Quesiton. Read the context thoroughly to ensure you know what the passage entails.
Question: in february 2016 what was the percent reduction in the board of directors authorized the repurchase to the february 2014
Program: divide(subtract(10, 12), 12)
Context: 
1. linearized table evidence: authorized share repurchase program in billions authorized share repurchase program in billions $ 12 $ 10
2. text evidence: board of directors authorized the repurchase of up to an additional $ 10 billion of our common stock .
3. text evidence: at the end of 2015 , the company had approximately $ 43 billion in cash and cash equivalents .
Answer: