Lending slowdown clearest at CBA 25 June 2009 4:17PM Ian Rogers Commonwealth Bank said that it estimated that's its decline in business lending in Australia was the steepest of any of the major banks.In a presentation to an investor conference hosted by UBS yetserday the bank's chief financial officer, David Craig, said CBA estimated its decline in business lending over the four months to April 2009 at 2.2 per cent. This was annualised data.