# How do I.... a1/b1=c1(round result to 2 places) then ..a2/b2=c2 without manually entering that in each c(x) cell [closed]

I have some data on gas mileage of my car. I would like to move it from paper to a spreadsheet. if I could do it recursively ......a1{some operation}b1 = c1 .... then.... a2{same operation}b2 = c2 etc. etc. I would have to manually enter less data from my paper records. The car has an avg mpg meter also so I have been keeping track of actual vs. reported m/g. So in general I need ... cell{function}cell =cell .... for each cell in a column. I really have looked in various tutorials for this but I can't find it. P.S. does anyone know of a good book on libreoffice calc. Thanks in advance to any who can help.