Brnad vlue :reduce marketing cost

1. i need write a part of report about branding vlaue: reduece marketing cost
2. there are three part need to write:
a. what is the marketing cost, (how reduce marketing cost)
b. related to the article about this part (How nike reduce marketing cost)
c. why reduce marketing cost is important

article link:
:https://www.spglobal.com/marketintelligence/en/news-insights/latest-news-headlines/nike-levels-up-digital-game-in-wake-of-coronavirus-hit-59265634