A little of both. Here is a sample of one of our managers set up.
$18 an hour = $720 a week
+
5% of sales over 10K per week. They do about 25K so 15,000 * .05 = $750
+
$50 for being under labor
$50 for being under food
$50 for being under on delivery times
$50 for cleaning/uniform / car signs...