| 2022/3 | 2023/3 |
Net sales | 495,827 | 608,064 |
Cost of sales | 435,280 | 529,550 |
Gross profit | 60,547 | 78,514 |
Selling, general and administrative expenses | 39,632 | 46,265 |
Operating profit | 20,915 | 32,249 |
Non-operating income | | |
Interest income | 135 | 211 |
Dividend income | 195 | 279 |
Share of profit of entities accounted for using equity method | - | 97 |
Commission income | 183 | 227 |
Foreign exchange gains | 252 | 107 |
Rental income from buildings | 104 | 126 |
Other | 572 | 412 |
Total non-operating income | 1,443 | 1,461 |
Non-operating expenses | | |
Interest expenses | 315 | 748 |
Share of loss of entities accounted for using equity method | 472 | - |
Other | 114 | 223 |
Total non-operating expenses | 902 | 971 |
Ordinary profit | 21,456 | 32,739 |
Extraordinary income | | |
Gain on sale of non-current assets | 15 | 20 |
Gain on sale of investment securities | 363 | 626 |
Gain on sale of businesses | 7 | - |
Gain on revision of retirement benefit plan | - | 126 |
Reversal of estimated losses associated with fund leakage incident that involved our American subsidiary | 176 | - |
Other | 34 | 1 |
Total extraordinary income | 596 | 774 |
Extraordinary losses | | |
Impairment losses | 93 | 644 |
Loss on retirement of non-current assets | 13 | 37 |
Loss on sale of investment securities | 2 | 12 |
Loss on valuation of investment securities | 260 | 348 |
Loss on liquidation of subsidiaries and associates | 175 | - |
Provision of allowance for doubtful accounts | 129 | - |
Other | 29 | 11 |
Total extraordinary losses | 705 | 1,054 |
Profit before income taxes | 21,348 | 32,460 |
Income taxes - current | 5,071 | 9,197 |
Income taxes - deferred | 606 | 167 |
Total income taxes | 5,678 | 9,365 |
Profit | 15,669 | 23,094 |
Profit attributable to | | |
Profit attributable to owners of parent | 15,401 | 23,070 |
Profit attributable to non-controlling interests | 268 | 23 |
Other comprehensive income | | |
Valuation difference on available-for-sale securities | -78 | 1,235 |
Deferred gains or losses on hedges | -52 | -16 |
Foreign currency translation adjustment | 4,922 | 4,033 |
Remeasurements of defined benefit plans, net of tax | 188 | 28 |
Share of other comprehensive income of entities accounted for using equity method | 95 | 97 |
Total other comprehensive income | 5,075 | 5,378 |
Comprehensive income | 20,745 | 28,472 |
Comprehensive income attributable to | | |
Comprehensive income attributable to owners of parent | 20,428 | 28,445 |
Comprehensive income attributable to non-controlling interests | 316 | 26 |