I see more problems here.

My first thought was to use conditional formatting to make all second and higher instances of "Delete Line" invisible by making the font equal to the background, but as you use different background (white and grey) that may not be an option. Could you possibly accept same background for all months?

A problem is that you doesn't seem to use real Excel dates in I7:U7 but text strings (I may be wrong here as I don't use US-settings)

I have problems understanding what it is you try to attempt. If we take a look at row 10, can you explain very simply what 47.83 and 14.88 in cells I10 and J10 mean.