After testing data have been entered for a sample you can view testing results by moving the mouse over the link to the testing module: This pops up a small window listing any values that were calculated by the module. You can revise your testing data by clicking on the testing module's link: Since every data entry card has that link, remember to click on the link in the data entry card for the sample whose testing results you want to revise.
To delete the testing data, move the mouse button over the module's link on the data entry card for the sample whose testing results you want to delete then click the right mouse button and choose the option to delete testing data from the pop-up menu.