If Earnings means an item that adds value to any stack. And, If Deductions means any item that subtracts value from any stack.
Then what single <word> can be an either Earning or Deduction? As in:
- You will be Earning 200 this June. (plus 200)
- You will be Deducted 100 this July. (less 100)
- You will be <word> +500 this August. (plus 500)
- You will be <word> -400 this September. (less 400)