TORONTO, April 23 Canada's main stock index turned negative during a sharp slip in the last half hour of trade on Wednesday. The Toronto Stock Exchange's S&P/TSX composite index shed around 20 points in minutes, pushing it more than 8 points below its last close, to 14,547.56. Six of the 10 main groups were in negative territory. (Reporting by Alastair Sharp; Editing by Meredith Mazzilli)
Sixty percent of the 10 main groups were in the negative territory.
Six of the 10 groups were in the negative territory, therefore sixty percent of them were in the negative territory. It's difficult because the system might think that "6 out of 10" and "sixty percent of 10" are different things.