|!-rent.CalculateLateHours-!|
|''hours late''|''grace''|''count grace''|''high demand''|''extra hours()''|
|0|1|yes|0|0|
|0.9|1|no|0|0|
|1|1|yes|0|1|
|1|1|no|0|0|
|9|1|yes|0|9|
|19|2|no|0|17|
