Study the following graph carefully and answer the question.
For company A, what is the approximate percentage decrease in production from 2015 to 2016?  

Given: 

Production in 2015 by P = 3 thousands 

Production in 2016 by P = 2.5 thousand  

Solution: 

Decrease in production = 3 - 2.5 = 0.5 thousands

Decrease % = $$\frac{0.5}{3}\times100 = \frac{50}{3} = 16.66\%$$ 

From the options, 

Option (a) 15% is the nearest to the 16.66%. 

Thus, option(a) is correct.