I'm not a great believer in a square feet per bird in the coop and square feet per bird in the run. We keep them in so many different conditions how can one number suit everyone? Not all coops and runs follow the classical definitions. You can follow the link in my signature below to see what I base that on. Instead of talking about coop space versus run space I tend to think more in terms of how much total room is available when they need it. Quality of that space can make a difference too. Cluttered areas that break line-of-sight are better than open areas.
Your climate can be a big factor in this. It really helps us if we have a general location so we can get an idea of what you are going to face, mainly in winter. If you modify your profile to show that it is always available.
Still, when you're starting you need some guidelines. For a flock of all hens that are the same age the 4 in the coop and 10 in the run aren't bad, depending on a few things. But if you have a mixed age flock, try to integrate, or allow a broody hen to hatch and raise chicks with the flock it can be really cramped. If something like a blizzard keeps them in the coop section only for days at a time the coop section needs to be bigger.
Photos can really help. Also a bit about your climate or area and breed and sex of the chickens you are thinking about could help.
Your device, browser , operating system, and where they are stored can make a difference in how to upload photos. With mine I have a tab in the bottom left of the editing box that says "Attach files". Click on that and go to where your photo is stored. Select the photo and then insert it. My photos are stored on my desktop.
This is another case where more information can help. If you can tell us your device, operating system, browser, and where they are stored maybe someone can give you more helpful advice.