Hi, I am doing a capstone project on my client challenges. There is a shortage of container for my client want to buy its own containers. I found the total cost incurs for buying 40ft containers is $1.3Million. Now I have to find ROI and discounted payback years on this investment. I have only two values with me right now i.e. Investment of $1.3Million and Annual revenue for 2021-22 is $22.1 million( which I got from doing client website). please let me know how I can find it and if the calculation needs different values such as interest rate or another. Kindly let me know where can I get it. I hope you understand my question if not please let me know. Thanks.