Want to buy a Macbook? Click the button, choose how many installments you want to pay, use the QR Code to make the down payment, and pay the rest with your card. Just enter your card details and continue the process! This application is a challenge from a company to build the final stage of a sale process! In this project, I used React and Material UI for the implementation and created a data file where you just need to change the values and the site updates automatically.