I have been given help creating a formula to calculate the cost of sale from a separate sheet. The formula calculates the latest COS every monday.
I unable to understand how to change this formula to look on Sundays instead, could you please help
=IFERROR(SUM(ARRAYFORMULA(HLOOKUP(TRANSPOSE(ARRAY_CONSTRAIN(FILTER(ARRAYFORMULA({TODAY();TODAY()-ROW($A$1:$A$23)}),ARRAYFORMULA(WEEKDAY({TODAY();TODAY()-ROW($A$1:$A$23)}))=2),1,1)),OFFSET('PPC KPIs'!$B$2,MATCH($A3,'PPC KPIs'!$A$2:$A,0)-1,0,4,500),3,FALSE)))/SUM(ARRAYFORMULA(HLOOKUP(TRANSPOSE(ARRAY_CONSTRAIN(FILTER(ARRAYFORMULA({TODAY();TODAY()-ROW($A$1:$A$23)}),ARRAYFORMULA(WEEKDAY({TODAY();TODAY()-ROW($A$1:$A$23)}))=2),1,1)),OFFSET('PPC KPIs'!$B$2,MATCH($A3,'PPC KPIs'!$A$2:$A,0)-1,0,4,500),4,FALSE))))
Solved by S. L. in 13 mins