​Observe the given graph and answer the question.

The graph shows the number of books printed (in lakhs) by a printing company from 2012 to 2017.

Which year accounted for the maximum percentage increase in the number of books printed?

Correct option is B

Given:

Number of books printed (in lakhs) by a printing company from 2012 to 2017:

2012: 50

2013: 60

2014: 45

2015: 55

2016: 65

2017: 40

Formula Used:

​$$\text{Percentage Increase} = \left( \frac{\text{New Value} - \text{Old Value}}{\text{Old Value}} \right) \times 100$$​​

Solution:

2012 to 2013:$$\frac{60 - 50}{50} \times 100 = 20\%$$​​

2013 to 2014: $$\frac{45-60}{60} \times 100 \approx -20\%$$​​

2014 to 2015:$$\frac{55 - 45}{45} \times 100 \approx 22.22\%$$​​

2015 to 2016: $$\frac{65 - 55}{55} \times 100 \approx 18.18\%$$​​

2016 to 2017: $$\frac{40-65 }{65} \times 100 \approx -38.46\%$$​​

Maximum percentage increase = 22.22% (2015)