[libreoffice-users] Summing a cell value by a backgroud color cell style

Hello,

I need to make a Calc table. Table is "structured" verticly. Tables sums 
number values from collums in the last row of table. Every collum stands 
for itself, and has nothing do do with oder collums.

But values are enterd in collum by different variables. I have set 
different cell background color for every variable. Is there a way to 
tell Calc to sum, devide or multiply values by the cell style color?

I can not enter summed, devidded or multiplied values directly to collum 
because I need to initials values summed (for each collum) so I want to 
set some kinde of formula to a different place in sheet with modified 
values. Maybe it can be done with sumif?

Maybe I am doing it wrong, maybe it can be done different way?

Sory for bad english, I can explain more in depth if necessary.

Kruno

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