Wanting to build an app to calculate tyre pressure requirements depending on the load. I have all the data and another app that is available that I would like to semi-replicate. I just need to get the interface built. The basic calculation I am needing this app to do for me is: If the tyre size equals XYZ and the load equals ABC, then the tyre pressure needs to be MNO. The data I am able to provide is in tables where this information is all available. On the first page the load itself also has to run through a calculation to ensure it has captured the correct weight distribution. I can provide this calculator in excel.