題組內容

2. Hulk buys T-shirts in bulk, applies its own trendsetting silk-screen designs, and then sells the T-shirts to a number of retailers. Hulk wants to be known for its trendsetting designs, and it wants every teenager to be seen in a distinctive Hulk T-shirt. Hulk presents the following data for its first two years of operations, 2018 and 2019.
Administrative cost per customer (row 7 + row 6) | $ 370 | $ 380 | Administrative costs depend on the number of customers Hulk has created capacity to support, not on the actual number of customers served. Hulk had 4,300 customers in 2018 and 4,200 customers in 2019.
Required:

(3) Suppose that the market for silk-screened T-shirts grew by \( 10\% \) during 2019. All increases in sales greater than \( 10\% \) are the result of Hulk's strategic actions. Calculate the change in operating income from 2018 to 2019 due to growth in market size, product differentiation, and cost leadership. How successful has Hulk been in implementing its strategy? Explain. \( (4\%) \)