Add 2 textfields' values together with button

Hi everyone.

My HTML/Javascript boardgame has 6 players.

Each player keeps track of their own cash, they each have a 'wallet' form.

On each form, I need to have a 'current cash' textfield that gets updated dynamically by entering a number in a 'cash adjustment' field (each player has their own cash-adjustment field).

Then the player simply presses a + or - button to add or subtract that amount to/from the 'current cash' field for that player.

Also, the current cash default should be $6110 (amount given to each player at the start of a game).

I'm a designer moreso than a coder, guys, so go easy on me please

I'm not sure how you're going to make a board game with just HTML/JavaScript ?
After reload everything will be back to default.

Anyways, that's not your question ;

I made a little demo .

If you still got any questions please ask.

Léon