McMorris says he won't discard the report, but there are discrepancies in the numbers.
The report, commissioned by the Canadian Union of Public Employees and done by University of Manitoba economist John Loxley, looked at the cost of the government's funding arrangement with Amicus Health Care Inc.
Loxley says the deal is unusual because the province is financing the full cost of borrowing and covering the bills if Amicus can't pay its mortgage.
He says it will cost taxpayers as much as $20 million more than if the government used traditional financing.
But the minister says it cost the province more to build similar facilities in 13 other communities than it cost to build the Amicus centre.