I have just read an article by Jon Padfield who quotes &quote;when you downsize 25% of your department without removing any of the work the rest of the departments workload goes up by 33% which in turn deprives them of the time to participate i

I have just read an article by Jon Padfield who quotes &quote;when you downsize 25% of your department without removing any of the work the rest of the departments workload goes up by 33% which in turn deprives them of the time to participate in training and improvement activities in their work area&quote;. I'm interested in finding out how the 33% figure was derived. Is there a formula, is there scientific evidence? Many thanks Maggie