Wella said it would welcome a special audit of the circumstances of its takeover this year by Procter & Gamble. It is a key demand of rebel minority shareholders who criticized the deal.Wella had already agreed to demands from the shareholders to hold an extraordinary general meeting. The rebels, holders of non-voting preference shares, refused to sell their Wella stakes after P&G offered them only 65 euros per share, compared with the 92.25 euros offered to holders of voting ordinary ...