|!-rent.CalculateLateHours-!|
|''hours late''|''grace''|''count grace''|''high demand''|''extra hours()''|
|0|1|yes|10|0|
|0.9|1|no|10|0|
|1|1|yes|5|6|
|1|1|no|12|0|
|9|1|no|10|18|
|19|2|no|100|117|
