Job Processing time $($Days$)$ Job Due Date $($Days$)$ A $1928$ B $1821$ C $38$ D $26$ E $1321$ There are painting jobs awaiting at a paint shop. Their processing times and due dates are shown in the table. The firm wants to determine the sequence of jobs according to shortest processing time $($SPT$).$ Jobs are assigned a letter in the order day arrived. What is the average job lateness $?$ Today is day $1$ and work begins today. $($Round your final answer to two decimal places. Do not enter any units. Only enter a number without any units.