Nearly every strength and conditioning coach in the country relies on percentages to enforce desired intensities to athletes for certain lifts. Basically, the client would perform their lift at a percentage of their 1 repetition max. If they had a max bench press of 100lbs, and you wanted to do 3 sets of 12 reps at 60%, they would do 3x12 at 60lbs. This is absolutely necessary in most strength and conditioning environments for multiple reasons, including consistent program design as well as enforcement of intensity (speaking from experience, some people WILL slack if given the chance). So the question becomes, are percentages right for you?
Most people are aware of the benefits of a personal health check and will not think it unusual to have one carried out periodically. It does therefore appear strange that the same people do not carry out a health check on their business. In the same way as an individual will benefit from a personal check so a business will also benefit from an early diagnosis of potential problems. In general the later a problem is identified the more drastic, painful and expensive is the solution to the problem.