The following table contains data on market advances and declines.

Day	Advances				Declines				Day				Advances				Declines
1		1,041				1,004				6				988				882
2		833				1,000				7				1,182				1,149
3		721				1,059				8				939				722
4		773				1,508				9				1,120				918
5		461				1,095				10				784				766

a. Calculate cumulative breadth. (Negative amounts should be indicated by a minus sign.)

Day Advances Declines Net Advances Cumulative Breadth

1 1,041 1,004

2 833 1,000

3 721 1,059

4 773 1,508

5 461 1,095

6 988 882

7 1,182 1,149

8 939 722

9 1,120 918

10 784 766