As a Roblox developer, it is currently too hard to use the Developer Exchange program to DevEx an exact amount of Robux.
When typing in the amount of Robux that I want to DevEx, I have to note down the total amount of Robux that I have before I start typing because the amount goes away when I input any value into the field.
Most of the time I forget how much Robux I have immediately after I start typing and therefore either have to refresh the page, open a new tab of the Roblox website or enter a larger amount than I have until it shows me the maximum amount.
Here’s a video showing how the Robux field currently works.
Keeping the total amount of Robux on the right side that says "Available Robux: __ 
" that I have on a dedicated spot on the screen would help me determine how much I would want to exchange.
If Roblox is able to address this issue, it would improve my development experience because it would make the process much faster and intuitive for developers.