Salvadore Inc., a local retailer, has provided the following data for the month of September:
| Merchandise inventory, beginning balance |
$ 46,800 |
| Merchandise inventory, ending balance |
$ 45,000 |
| Sales |
$265,200 |
| Purchases of merchandise inventory |
$133,100 |
| Selling expense |
$ 24,900 |
| Administrative expense |
$ 54,700 |
The net operating income for September was: