Thanks guys, what I should have included is that I wanted to do this
via code, so from your suggestions, I recorded below

Sub CopyPreviousEvents()
Application.ScreenUpdating = False
Range("C59:AE60").Select
Range("C60").Activate
Selection.ClearContents
Range("C61:AE61").Select
Selection.Copy
Range("C60").Select
Selection.PasteSpecial Paste:=xlPasteValues,
Operation:=xlSubtract, _
SkipBlanks:=False, Transpose:=False
Range("C61:AE61").Select
Application.CutCopyMode = False
Selection.ClearContents
Range("C6").Select
End Sub