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Income Statements - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Profit or loss [abstract] |  |  |
Net operating revenue | R$ 17,797,541 | R$ 17,983,654 | R$ 16,085,094
Operating costs | (11,179,667) | (10,137,637) | (9,086,456)
Gross profit | 6,617,874 | 7,846,017 | 6,998,638
Selling expenses | (751,286) | (803,404) | (693,480)
Allowance for doubtful accounts | (444,826) | (128,099) | (166,727)
Administrative expenses | (1,051,181) | (1,187,844) | (996,877)
Other operating income (expenses), net | 107,656 | (18,748) | 28,591
Equity results of investments in affiliaties | 14,136 | 3,701 | 6,510
Profit from operations before finance income (expenses) and income tax and social contribution | 4,492,373 | 5,711,623 | 5,176,655
Financial expenses | (1,324,759) | (1,173,425) | (807,967)
Financial revenues | 336,731 | 372,842 | 446,302
Exchange result, net | (2,178,343) | (233,098) | (902,671)
Financial result, net | (3,166,371) | (1,033,681) | (1,264,336)
Profit before income tax and social contribution | 1,326,002 | 4,677,942 | 3,912,319
Income tax and social contribution |  |  |
Current | (460,721) | (1,155,463) | (852,655)
Deferred | 108,037 | (154,962) | (224,596)
Income tax and social contribution, total | (352,684) | (1,310,425) | (1,077,251)
Profit for the year | R$ 973,318 | R$ 3,367,517 | R$ 2,835,068
Earnings per share - basic and diluted (in reais) | R$ 1.42 | R$ 4.93 | R$ 4.15

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