How do I count the number of cells with negative values in a series

If the number in column A = negative, I want to count the number of negative occurances in a row starting with column A.

-1% 1% -1% 0% 0% -2% -3% -6% -3% -1% -1% 1% -1% = 1
-1% -1% 0% 0% -2% -3% -6% -3% -1% -1% 1% -1% = 2