You want to form a valueweighted technology stock index using Apple, Google, and Microsoft. Apples adjusted closing price for 2018 is $189.62 and for 2017 is $145.93; Googles adjusted closing price for 2018 is $1,217.26 and for 2017 is $930.50; Microsofts adjusted closing price for 2018 is $105.67 and for 2017 is $71.03. The additional information that you gathered is their market values at the end of 2017 or beginning of 2018; in billions of dollars, Apple's market value is $810.38 B, Google's market value is $664.13 B, and Microsoft's market value is $564.93 B. What is the annual return for your valueweighted technology stock index for 2018? Enter your answer rounded to two decimal places. Do not enter % in the answer box. For example, if your answer is 0.12345 or 12.345% then enter as 12.35