On January 1, Blossom Inc. completed its analysis of the prospects for the Geriatric Toy Store and concluded that there was a 25-percent chance the stock price would be $140 in one year and an 75-percent chance the stock price would be $190. Six months later, Blossom Inc. revised its estimated probabilities to a 40-percent chance of a stock price of $140 and a 60 percent chance of $190. If the market agrees with Blossom Inc.'s revised probabilities, what is the expected change in stock price from January 1 to July 1? Assume the discount rate is zero. (Round answer to 2 decimal places, e.g. 15.25.) Expected change in stock price 4 of $