Global Journal of Management and Business Research, B: Economics and Commerce, Volume 21 Issue 5

ANNUAL COSTING Operational cost Direct cost BRL 162,000,000.00 BRL 178,200,000.00 Indirect cost BRL 36,000,000.00 BRL 43,200,000.00 Administrative costs BRL 56,160,000.00 BRL 62,712,000.00 Financial expenses BRL 540,000 BRL 564,000.00 Lease Contract Costs BRL 300,000.00 BRL 330,000.00 Costs with Accessory Revenues BRL 300,000.00 BRL 330,000.00 Total Annual Production Cost (CTPA) BRL 255,300,000.00 BRL 285,336,000.00 PROFITABILITY Gross Margin (Total Revenue / Total Cost) BRL -BRL 9,673,160.00 BRL 47,194,590.62 Gross Margin (Total Revenue / Total Cost) % -3.79% 16.54% Operating Income -BRL 44,515,964.70 BRL 33,136.46 Operating Profit % -18.21% 0.01% Situation Unbalanced Balanced ALLOWED ANNUAL REVENUE (RAP) BRL 332,530,590.62 Average Readjustment Index (ARI) 35.54% Average Tariff Effect (ATE) 35.38% IV. C onclusion This study demonstrated a mathematical and economic model, based on efficient allocation costs, to be applied for tariff review by port authorities and all public ports - controlled by the federal government or even concessionaires (although concession contracts may contain their own specific rules). This proposal is being gradually implemented by the Agency during the years 2021 and 2022. As we see, it allows the search to various points of balance, to be tested by the company and negotiated with the Regulator, assisting in a price sensitivity analysis. There are advantages and disadvantages. Advantages: the profit of the port authority is monitored (a kind of "supervised freedom"), so that only the cost plus a certain percentage is paid by the consumers. In theory, this cost would fall, as the contract progresses in time, and the efficiency gains would be passed on to the consumer, preventing an arbitrary profit. Disadvantages: as we guarantee a minimum rate of profit for the entrepreneur, it does not provide sufficient stimulus to increase efficiency, which is important in face of technological changes. The inverse of the expected would then happen: the price, discounted for inflation, would rise over time, or, the quality would fall. Therefore, it should be used together with other instruments, as a productivity factor (X Factor) within regular annual readjustments in a cycle logic. The model presented here contributes to a reduction of uncertainties. Demonstrates something viable in efficiently allocating resources. It is flexible enough to be adopted by service providers, because it does not remove the possibility of a positive profit and of establishing a commercial policy aiming at maximizing total revenue. It also provides transparency and predictability to the market. To obtain the final price, other elements can be added to the cost, such as, for example, the perspective of added value to the consumer and productivity, a theme for the next paper. R eferences R éférences R eferencias 1. ANTAQ. Normative Resolution No. 32-ANTAQ, of May 3, 2019. Standardized tariff structure of port administrations and the procedures for readjustment and revision of tariffs. Available at http://sophia.antaq.gov.br/terminal/Resultado/Listar Legislacao?guid=4de8b7092b56a006ced1. Acessed on 29/08/2021. 2. ANTAQ. Port Authorities Accounts Manual, 2017 version. Available at https://www.gov.br/antaq/pt- br/assuntos/instalacoes-portuarias/ManualdeCont asdaAuthorityPorturia_versao2017_Compilada.pdf. 2017. Accessed on 05/14/2021. 3. ANTAQ. Technical Note No. 50/2017/GRP/SRG. Scenarios Examples for the Costing Method and Port Authorities. Sandro José Monteiro. 2017. Available at: https://www.gov.br/antaq/pt-br/assu ntos/instalacoes-portuarias/NotaTcnican50_2017_ GRP_ANTAQ.pdf. Accessed on 05/14/2021. 4. ANTAQ. Technical Note No. 64/2017/GRP/SRG. Cost Objects described in the Manual of Accounting of the Port Authorities. Sandro José Monteiro. 2017. Available at: https://www.gov.br/antaq/pt-br/assu ntos/instalacoes-portuarias/portos/NT64Esclarecim entosacercadosObjetosdeCustosdescritosnoManua ldeContasdasAutoridadesPorturias.pdf. Accessed on 05/14/2021. A Practical Tariff Methodology for Port Authorities © 2021 Global Journals 23 Global Journal of Management and Business Research Volume XXI Issue V Version I Year 2021 ( ) B