Alan Kelly (Tipperary, Labour) | Oireachtas source

I have a really puzzling query here about the Munster Technological University. The query concerns costs. The HEA might want to have a look at this. A letter was written to the Committee for Public Accounts on 23 March 2018. It stated that the costs of the merger to date were a total of €571,803. Yet a letter to the committee dated 27 May stated that the costs were €752,186. How can it be that the costs were €752,186 in 2015, but went down to €571,803 in 2018?