Very frequently, the common fella has more of an affinity for the absolute numbers; figures for measure, for quantification, for constraints, for limits.
While it is all very correct and true for a variety of situations; number of demerit points for suspension of licenses, as a fixed KPI for bonus/awards, fixed pricing for purchases.
Sometimes, in a longer time horizon, for an ongoing event like determination of a measure of performance, it is better to defer to the use of percentages.
Simply, if you have got a key statistic; say an increase of 20 people going through your store doors each day, this improvement is made more indicative expressed as a percentage such 5% or 10% etc.
Just beware of the pitfalls of percentages.
