need to do my estimates but i need to right my cost and add markup in % it is possible ?

need to do my estimates but i need to right my cost and add markup in % it is possible ?

the estimate sheet you add a sale price but i need to right my cost and add markup it is possible to make this modification ? and i dont want to save a product i do the estimated in the same page if i save the product i dont want to add the price in each product