Help with formulas

[jumbla]

I need help with these formulas, i have an assignment to find out what they do but maybe i don't get it. here is the formulas and what i think they do. But it is hard for me to know that they are meant to do i do not understand the RC and C ?

VLOOKUP(RC[3],Sheet1!C[-1]:C[3],4,FALSE)*(RC[1]/SUMIF(C[3],RC[3],C[1]))

=IF(RC[1]>0,(RC[1]/SUMIF(C[-2],RC[-2],C[1]))*SUMIF(C[-2],RC[-2],C[-1]),0)

=SUMIF(Utdata!C,RC[-4],Sheet2!C[-2])/SUM(Sheet2!C[-2])

[SAFC]

Click on Home, Options and then go to the formula tab. Under "Working with Formulas" you'll see R1C1 reference style and you'll get out of R1C1 style. If you post the sheet I can tell you what the formulas are doing.

[Fotis1991]

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