Total Hours/Year Drop Before and After Automation

Hi Guys, we have been inputting data into the hub, and have a query about one of the calculations. see below screen shot, we are unsure why the value drops between the Before Automation and After Automation - can anyone help?

and again in the below, and the difference does not seem to be relative to the amount of hours - which have been artificially inflated in the below example, but no other settings have changed…

Thanks in advance guys…Stay safe!