mysql installment insertation kind
The choices are more for your convenience, not the database's ability to handle it.

Here's another:

+---------------+--------+------------+------------+
|  DESCRIPTION  | AMOUNT | COMMİSSİON | VALUE DATE |
+---------------+--------+------------+------------+
| INSTALLMENT   |    100 |          1 | 01.03.2018 |
| INSTALLMENT   |    100 |          1 | 01.04.2018 |
| INSTALLMENT   |    100 |          1 | 01.05.2018 |


This has the advantage of tying the AMOUNT and COMMISSION together.