Well, let‘s take a look at your situation. What level are your athletes or clients at? New athletes or clients probably would not benefit from percentages as much as more advanced clients, as they need to learn how to perform the lift correctly first and foremost. Second, a new client will adapt to the exercise so fast that by the next time you perform the exercise, their 1 rep max may be out of date and thus their percentages would be incorrect (if they used to bench 100lbs, but after 2 workouts they can bench 110lbs, that 60% you have them working out as now too low to cause the adaptation you are looking for).
If you are working with spreadsheets, you might encounter the time when you need to compare spreadsheet with another one. This is pretty helpful especially for those who need to get the differences and the similarities between two or more spreadsheets. This is a method for analyzing if the data entered are correct. Plus, this is also useful for those who are having problems in detecting the changes that have been made onto their spreadsheet files. In order for you to compare two spreadsheets, you will need to take advantage of the built in tools for comparing spreadsheets in the application that you are using. Spreadsheets are computer applications that provide you with a virtual way of creating accounting worksheets. They are often used for calculating numbers and organizing data. You can also use them for charting and displaying the graphical interpretation of data. There are many electronic spreadsheets today so you can use them to start the comparison process.