What is maximization of profit?

What is maximization of profit?
Maximization of profit is maximizing the profit to cost ratio. if you can sell something for a dollar that costs a quarter to make you have a 75 cents profit but if the same item cost 50 cents you would only have a quarter profit. maximization of profit takes into accout sullpy and demand. lets say 100 people want your product. if it costs a dollar only 80 people would buy it which would give you a 60 dollar profit. but if it you sold it at 1.50 only 40 people would buy it and you would have a 50 dollar profit. and if you sold it at 50 cents all 100 would buy it but you would only make a 25 dollar profit. so the mazimization of profit would be to sell at 1 dollar.