That depends on what parts got ported. I worked on a large app where just a couple payment screens too as long as most of the rest of the app because there were

That depends on what parts got ported. I worked on a large app where just a couple payment screens too as long as most of the rest of the app because there were so many business rules to take care of. If they prioritize the most important and complex parts of the system, they may be a lot closer to finished than the numbers would seem to indicate.