+448 Nina is a small business owner who took over their family store in 2003. The store, which was originally opened in 1993, sells all types of clothes and apparel in her hometown. Later, in 2008, Nina joined Shopify as an online merchant. She began selling more products online than in her physical store. Now, many years later, Nina wants to look back on her decision to open an online shop and see exactly how much more products she has been selling.
| products | 1993 | 1998 | 2003 | 2008 | 2013 | 2019 |
| T-shirts | 7032 | 9046 | 14862 | 29086 | 48264 | 94072 |
| Sweatshirts | 5023 | 10865 | 12654 | 25433 | 21371 | 20745 |
| Pants | 12024 | 19752 | 25463 | 36963 | 29057 | 21945 |
| Leggings | 4362 | 5349 | 2753 | 8072 | 11864 | 21308 |
| Jackets | 3540 | 4214 | 4452 | 9833 | 13973 | 19723 |
| Shoes | 5932 | 6128 | 4976 | 7749 | 1038 | 15257 |
| Hats | 9620 | 4214 | 4062 | 5183 | 5432 | 7243 |
For all products combined, what is the percentage of increased sales between 1993 and 2003? What is the percentage of increased sales between 2008 and 2019? Comparing her increased sales percentages over the two periods, by what percentage did her sales increase by becoming a Shopify merchant? (round all percentage totals to the nearest 5%)
+129852 All products sold in 1993 =
7032 + 5023 + 12024 + 4362 + 3540 + 5932 + 9620 = 47533
All products sold in 2003 =
14862 + 12564 + 25463 + 2753 + 4452 + 4976 + 4062 = 69132
% increase between 1993 and 2003 = [ 69132 - 47533 ] / 47533 ≈ 45.4% = 45%
All products sold in 2008 =
29086 + 25433 + 36963 + 8072 + 9833 + 7749 + 5183 = 122319
All products sold in 2019 =
94072 + 20745 + 21945 + 21308 + 19723 + 15257 + 7243 = 200293
% increase between 2008 and 2019 = [ 200293 - 122319 ] / 122319 ≈ 63.7% = 65%
So sales increase by about 65 -45 = 20% over the two periods
