Enter a stock symbol (US markets) and choose the desired option expiration dates and a new sheet will be inserted showing price data and potential profit and ROI at six different price points- price changes of 10%, 33%,50%, 66%, 90%, and 100%. Price data on a sheet can be updated by selecting the "Update prices" button on the sidebar. The mid point of the bid/ask is used as the option price. Profit is based on intrinsic value.