Worked on following
1.) Removed the round corner and orange color for total-enteredAmt-remain section.
2.) Style the input field, On focusing showing the green color border.
3.) Update the openPopover function, Now it recieve the parameters from Item row in Cart.html using ng-click on openPopover function.
4.) On selection of Place Order, the Popover on item list will be disable. For this we have used 'successfullOrder' and 'popover' scope variables.
5.) Style the UPC input field.
6.) Added the productInfo.html, which will be shown in Popover.
7.) Update the message in SuccessfullOrder file.