This task is about creating an unanswerable question based on a given passage. Construct a question that looks relevant to the given context but is unanswerable. Following are a few suggestions about how to create unanswerable questions:
(i) create questions which require satisfying a constraint that is not mentioned in the passage
(ii) create questions which require information beyond what is provided in the passage in order to answer
(iii) replace an existing entity, number, date mentioned in the passage with other entity, number, date and use it in the question
(iv) create a question which is answerable from the passage and then replace one or two words by their antonyms or insert/remove negation words to make it unanswerable.
Q: Passage: In 2006, Dell acknowledged that it had problems with customer service. Issues included call transfers of more than 45% of calls and long wait times. Dell's blog detailed the response: "We're spending more than a $100 million and a lot of blood, sweat and tears of talented people to fix this." Later in the year, the company increased its spending on customer service to $150 million. Despite significant investment in this space, Dell continues to face public scrutiny with even the company's own website littered with complaints regarding the issue escalation process.[original research?]
A:
What percentage of Dell support calls weren't transferred?