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The horizontal bars in the above diagram represent 2020 aggregate sales (in ₹ million) of a company for the different subcategories of its products. The top four product subcategories (Bookcases, Chairs, Furnishings, Tables) belong to furniture product category; the bottom four product subcategories (Accessories, Copiers, Machines, Phones) belong to the technology product category while all other product subcategories belong to the office supply product category. For each of the product subcategories, there is a vertical line indicating the sales of the corresponding subcategory in 2019.
The percentage increase in sales in Furniture category from 2019 to 2020 is closest to
The percentage increase in sales in the furniture category from 2019 to 2020 are :
Bookcases: 1.9 million in 2019 and 2.2 million in 2020.
Chairs: 6.2 million in 2019 and 7 million in 2020.
Furnishings: 2.05 million in 2019 and 2.1 million in 2020.
Tables: 4.4 million in 2019 and 4.5 million in 2020.
Hence the percentage increase is given by :
$$\frac{\left(\left(2.2+7+2.1+4.5\right)-\left(1.9+6.2+2.05+4.4\right)\right)}{1.9+6.2+2.05+4.4}$$
$$\frac{\left(15.8-14.55\right)}{14.55}\cdot100\ =\ \frac{125}{14.55}=\ 8.53\%$$
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