What would be the best way to make a counter?

Question

Vue.js

Hello! I am working on one project, along the way I met this sample form:

Screen

I just started learning Vue.Js, I would really like to practice it on this form, if possible. I don’t know how to implement a block with a counter and with a choice of colors for a flower.
I found examples in the documentation, but I don’t understand how to make the content of another element change when the button is clicked. (See counter)
Please, please provide an example with code.

Answer 1

https://www.vuescript.com/vue-minus-plus-input/
I think it will help you. You want to take it ready, you want to disassemble it.