HOW TO MAKE A FORMULA BETWEEN D=F*C IN THE WHOLE PAGE

L

lady one

I've been trying to get the data in column f time the data in column c to be
equal to the data in column d.. D=F*C but it only work if I do it one row at
a time ..I need a formula that work on the whole sheet ,without having to do
it in every single row..
Thanks for your help

musa..
 
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