Software quality and testing

For following application specification, include recommendations on how to create better requirements and also requirements that could be tested. You are to develop an easy to use mobile app that will track a user's stock portfolio (set of owned stocks) on North American Stock Exchanges. The app must support the ability to record buy/sell transactions (including the date and # of stock purchased/sold). The app must also keep track of any payments made to you as dividends while you own the stock. The app must be able to calculate the average return over the entire portfolio of stocks as well. To calculate the return on a stock in a portfolio use the following formula: %return = (P2 - P1+ Div) / (D2-D1) where: P1, P2 is the price of the stock in Dollars on the purchase and sell date, D1,D2 are the two dates. List all of the Items that need clarifications. For following application specification, include recommendations on how to create better requirements and also requirements that could be tested. You are to develop an easy to use mobile app that will track a user's stock portfolio (set of owned stocks) on North American Stock Exchanges. The app must support the ability to record buy/sell transactions (including the date and # of stock purchased/sold). The app must also keep track of any payments made to you as dividends while you own the stock. The app must be able to calculate the average return over the entire portfolio of stocks as well. To calculate the return on a stock in a portfolio use the following formula: %return = (P2 - P1+ Div) / (D2-D1) where: P1, P2 is the price of the stock in Dollars on the purchase and sell date, D1,D2 are the two dates. List all of the Items that need clarifications