Economics question

  Adidas estimates that it can persuade Ms. Consumer to start using Adidas shoes, and to continue purchasing Adidas shoes for the next three years, with likelihood decreasing by 10% (100%, 90%, 80%, etc.). Marketing activities to get her to start using Adidas shoes are estimated at $50, and she is expected to spend $100 on a pair of Adidas shoes every year, with the variable costs for each pair of shoes being $40. Using a discount rate of 15%, what is her CLV to Adidas?