How Do You Evaluate a Model?

An accuracy metrix, if you think about it, map, ok, that doesn't translate eno to translate to inventory easily, or to dollar cost for us easily. So we need to come up with better metric. There is a bit of disparity in it between researches. Which metric would be the best one there? But there are lots of other ones you can think of,. mace, mean, absolutely scare eror another metric that tcan be useful. but silan goin resers.