Answer & Solution
Answer: Option E
Solution:
Number of projects handled by company B in 2004 = 320
Number of projects handled by company B in 2006 = 190
Required decrease percentage
$$\eqalign{
& = \frac{320-190}{320}\times100 \cr
& = \frac{130}{320}\times100 \cr
& = \frac{1300}{32}\% \cr
& = \frac{325}{8}\% \cr
& = 40\frac{5}{8}\% \cr} $$