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a new client will adapt to the exercise so fast that by the next time you perform the exercise, their 1 rep max may be out of date and thus their percentages would be incorrect (if they used to bench 100lbs, but after 2 workouts they can bench 110lbs, that 60% you have them working out as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).
OpenMRS (Open Source Medical Records Systems) applications are an online program that has a web-based integrated database DMS that has no limitations unlike the previous two. It tracks down patient‘s treatments, laboratory data management, reporting and analysis, pharmacy stock management and offers decision support. This is a very adaptive, inexpensive and accommodative and sometimes, a free system. This system allows modification by its users in order for it to fit their requirements and capabilities due to its versatility. It may also be used offline in case there is a problem with the internet or when experiencing low-speed internet connectivity since it has a synchronization feature that allows integration, thus, work done offline gets incorporated with the online database.