the way i've been doing it is taking into account how many drinks each method results in with the amount of money remaining.

This does not take listing fees into account, only sell fees.

boldOpening 10 boxes and selling items at Instant sell prices 10 boxes opened, sold snow flake, candy canes, and fruit cake and made 21s and 20c after fees, and purchased 2 eggnog on buy order and had 5s 92c remaining

total contents * 4 apple cider 7s 82c * 3 buttered spirits 7s 72c * 2 eggnog 7s 64c * 8 tiny snowflakes (promoted to unique snowflake, sold for 11c) * 6 candy canes 2s 81c total 16s 86c * 1 fruit cake 5s 88c

Resulted in 9 drinks with 5s 92c remaining

boldSelling Stack selling 10 boxes at 7s 96c each results in 71s 63c after TP fees I was able to purchase 9 mugs of eggnog for 7s 74c each on buy orders for a total of 69s and 66c leaving a remainder of 1s 97c

Resulted in 9 drinks with 1s 97c remaining

boldOpening 10 boxes, selling items at sell price (not instant sell) Sell prices, items sold at 1c below lowest price 10 boxes opened contents, sold candy canes, icicle and peppermint cake for a total of 11s and 36c which was used to buy 1 snowman tonic for 7s 5c leaving a remainder of 4s 30c

contents * 4 buttered spirits * 3 apple cider * 2 eggnog * 1 festive golem tonic * 8 tiny snowflakes (promoted to unique snowflake, sold for 17c) * 2 candy canes 3s 53c * 1 icicle 3s 65c * 1 peppermint cake 1s 72c

Resulted in 11 drinks with 4s 30c remaining

boldOpening 10 boxes, selling items at sell price (not instant sell) Sell prices, items sold at 1c below lowest price 10 boxes opened contents, sold snowflakes and candy canes for 6s 17c

contents 4 apple cider 3 eggnog 2 buttered spirits 1 snowman tonic 1 reindeer tonic 11 tiny snowflakes (promoted to 1 tiny, 1 delicate and 1 unique sold for 23c total) 2 candy canes 3s 31c

Resulted in 11 drinks with 6s 17c remaining