# How to get cost estiamte from other material to the material?

Dear,

THere is a cost estimate for material A, suppose standard cost of Mat A is 1000 RMB. I also have another material B. But I have a requirement: when costing B, its cost estimate can be got from Mat A for about 30 percent. So, After doing cost estimate for B, the cost estimate of B should be 300 RMB.

So, I have a question: how to get cost estimate B from A by this requirement?

thanks.