3.14 The Department retained Ovum to benchmark the agreed prices with industry comparators shortly after the contract was let (paragraph 2.36). Ovum provide quarterly reports for three years on how prices in the industry are changing relative to those in the contract. Ovum's latest report shows that BT's prices for this contract compare favourably with others in the industry, where there are reasonable comparators, and this agrees with our consultants' findings in paragraph 2.38. Regular benchmarking such as this is a way of ensuring prices continue to deliver value for money and could be used as evidence in a value for money challenge.