325 is the answer I came up with but was incorrect. any help would be apreciate it

Using the same model as in Q1 (that is, with a price per copy of \$46). Through a series of web-based experiments, Eastman has created a predictive model that estimates demand as a function of price. The predictive model is demand =4,0006p, where p is the price of the e-book. Update your spreadsheet model to take into account this demand function. Use a data table that varies price from $50 to $400 in increments of $25 to find the price that maximizes profit. What price maximizes profit? (hint: it should be in an increment of 25 )