Right, dun. We start trying to get our calves on feed and grain when they are about 1 week old. It's slow progress and small amounts until they figure it out. The price I gave figures in milk replacer, grain, and hay. From there, you have to decide what the calf is for. Do you want to finish it for slaughter? Is it a heifer you want to retain for your herd. The end product will determine what you do after the 8 weeks.
One calf, + one bag of milk, $48. 6 bags of good starter $8.00X 6 =$42.00. meds, vaccines, approx$12.00 thats before you decide at weaning to go creep, grass, hay etc.