Plant transfer with margin with different profit centers

Dear Experts,

We have a scenario wherein we manufacture the product at plant 100 and sell through plant 200.

As per new requirement, above plant transfer should be done with the margin.

Example:

Plant 100, product Std price: 1000

At the time of transfer to plant 200, product price should be 1500.

Rs. 500 will be the fixed margin for the year. next year it may change.

Plant 100, Prodcut price: 1000, profit center 101

Plant 200, product price 1500, profit center 201

Please guide me hoe to set up above case

Thanks