OK, so H7 all the way to H18 as well as I7 to I18 will all be entered manually. Once entered manually I would like it to auto-calculate D7-D18, E7-E18 as well as F7-F18. Here's the tricky part, I would like the D column to have a value of 24 (as per 24 beers per case) The E column to have a value of 6 (4-6 packs per case as far as column D is concerned) As for column F (it would be broken down into individuals so 1 for 1. If I need 24 individual bottles like the image (I7), but only have 15 (F7) I would then like E7 to go to 5 as it originally only has 1 so 15+6=21 (therefore not enough). D7 would go from 1-0 then E7 would now become 5-2=3 because 2 of the 6 packs would now be used on F7 which originally had 15 now would have 27 but -25 for I7 for a final total of 2.
After the 24 bottles are entered the new variants for Milwaukee beer would be D7= 0 , E7=3, F7=3, that would be the cascade effect I'm looking for.
I know its a bit confusing with me trying to explain it but hopefully that simplifies it enough to figure out what I'm looking for.
PS. Thank you, for any time you are putting into this, very appreciated.