build calculator into the numbers column

I would love to see a calculator build into the numbers column. We track budget expenses in Monday. Columns include past, current and futures year’s budget, total payments made for current year and then some formula columns that help us know how we are doing against planned budget.

The challenge we face is as payments are made, we need to add those into the “payments (made for current year)” column. So I’m frequently copying the current number out of that field into an external calculator to add with the new payment being made then copying that value back. If you could click on the numbers column and get the option of a calculator to manipulate the current value, that would be a great time saver.