Open the VB2015\Chap09\Retail Solution\Retail Solution (Retail Solution.sln) file. Open the Code Editor window. Notice that the code declares and initializes a class-level array named dblWholesale. The btnRetail_Click procedure should ask the user for a percentage amount and then use that amount to increase each price stored in the array. The increased prices should be displayed (right-aligned with two decimal places) in the lstRetail control. Test the application appropriately.