Copy spreadsheet and make two easy calculations.

Hi All :)

I need a macro that copies the sheet you are on to a new sheet and renames this new sheet chicken.

Then on chicken, i need a column to be inserted after column (B) which calcultes "Col(A)*0.28 - Col(B)"

Finally I need a column to be inserted after column (E) which calcultes "Col(D)-Col(C)*0.91"

Thank you so much for your help.

I need this to be a macro because I am making it part of a much bigger macro.

Thanks yall.