>>10475979
Depends. Typically more complicated costumes (armor, unique designs, anime-logic clothing, or more pieces) will cost more to make or buy. Sometimes buying a costume is cheaper, sometimes making it is cheaper. My first costume (outfit, shoes, lashes, wig, and prop) totaled $80 and my second, which I made myself, was like $40-60 but was a bitch and a half to make because I had no clue what I was doing and had none of the necessary tools yet.
A good way to figure out where your desired cosplay falls in that range is to do a costume breakdown (breakdown).
>Find reference pictures that you can use for a front and back view of your character. If your character is wearing layers, it can be helpful to see a reference with a layer or two off (ie, takes off jacket or something), but it's not required.
>Next draw an arrow and label each piece of the costume starting from top to bottom, inside to outside. So, for pic related you would start with her hat, wig, earrings, purple lipstick, and dress.
>Next, identify if you need to make, buy, or commission any of these pieces. (If you're making them, start listing the tools/materials you will need to do so and again identify if you need to buy anything)
>Finally, give a rough estimate of each piece of the costume to find a rough budget. Doing some research (like how much the outfit will cost) will help.
I could go on and on, but honestly the best thing I can offer you aside from this breakdown is to point you to youtube. There is amazing, specific, free content about how to plan a costume, where to buy wigs/costumes, and how to plan costumes that will be very helpful to you.