How much does 99 cooking cost?

ok my plain is to buy 10k raw lobsters then cook then sell it then cook and do that process all over again till I get 99 cooking. I am 62 atm so how much would 99 cooking cost me?How much does 99 cooking cost?
i would say about 100k cook them all save 30 and sell 70





99 cooking


99 fishing


99 firemaking


90 woodcutting


75 str


63 def


80 attk


41 range


69 mage


80 rune craftin


5 craftingHow much does 99 cooking cost?
I'm not sure how much it will cost, but it will be for sure more then 10k lobs
cost me 7 m from 70 cooking swordies%26lt;3 my 99fishing