The percentage of the job that has completed at the time that this value is requested. Note that this property is also present ...

The percentage of the job that has completed at the time that this value is requested. Note that this property is also present in the JobProcessingStatistics class. This class is necessary to capture the processing information for recurring Jobs, because only the \'last\' run data can be stored in this single-valued property. 
Note that the value 101 is undefined and will be not be allowed in the next major revision of the specification.