Market research carried out by Foamy Ltd has demonstrated that for sales at a price of 1.90 per drink demand from retailers would be zero, and that demand will increase, on a straight line basis, by 20,000 drinks for every 10p (0.10) fall in price. Required: c. Calculate the sales price at which the companys profit will be maximised, and the profit the company will make at that sales price. please provide the solution with each formula an d detail you are going to use