Secure webpage to enter data and report

We want to track the sales in our little coffee hut and want to see reports and analyse the data I have attached an example of a daily till report and I want to enter this information into a web page and be able to enter this daily and then be able to see reports on the last 7 days, last 30 days, last 90 days and a range of dates Examples of what I want to track is -hourly sales per day with averages over a date range (under HOURLY) -report on items sold last 7,30,90 and range of dates (under DEPT) -report on types of transactions eg. Cash, eftpos, cheque and the qty and total per hour Essentially I want to track all of the data each day and be able to see logical reports on it when needed, needs to be easy and entry on an iphone would be great for entering the data, but reporting would be viewed on a computer on a webpage Ability to download all data to csv