Matemática no cotidiano: Simplificando a prática da matemática financeira no financiamento de imóveis.

Authors

  • Yves Garnard Irilan IFSC
  • Josiane de Oliveira

DOI:

https://doi.org/10.36557/2009-3578.2025v11n2p8469-8487

Abstract

This paper focuses primarily on residential financing, using knowledge of financial mathematics to evaluate which modality is most advantageous for homeownership. This study begins with the conceptual definitions of simple interest, compound interest, equivalent rates, and amortization systems, highlighting the SAC Table (Constant Amortization System) and the Price Table (French Amortization System). The aim is to demonstrate how these concepts assist in making informed and assertive financial decisions. The practical part of the work consists of a financing simulation for a property valued at R$299,999.99, considering a down payment of R$59,999.99 and financing of R$240,000.00. Comparisons were made between the SAC and Price tables to analyze variations in installments, interest, and outstanding balance over time. This study allows us to visualize which option represents the greatest savings for the buyer. This study concludes that financial mathematics is essential for purchasing decisions and financial planning, especially in long-term transactions such as mortgages.

 

Keywords: financial mathematics, simple interest, compound interest, SAC table, PRICE table.

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References

ASSAF NETO, Alexandre. Curso de Administração Financeira. – São Paulo: Atlas, 2008.

https://www.spcbrasil.org.br/blog/amortizacao

https://www.santander.com.br/blog/tabela-price-sac

https://imovago.com.br/imovel/40145141

https://www.imoveiszardo.com.br/imovel/venda/casa/cacador-sc/kurtz/casa-com-2-dormitorios-a-venda--kurtz--cacador---sc/719520

https://cim-simulador-imovelproprio.apps.bb.com.br/simulacao-imobiliario/resultado-simulacao

IRILAN, Yves Garnard. Material sobre sistemas de amortização. [material de apoio], recebido por Josiane de Oliveira, via e-mail, 21 maio e 23 junho 2025.

IRILAN, Yves Garnard. Conteúdos diversos de Matemática Financeira II. Anotações de aula tomadas por Josiane de Oliveira. Caçador, Instituto Federal de Santa Catarina - IFSC, 2° Semestre de 2025.

Published

2025-12-06

How to Cite

Irilan , Y. G., & Oliveira, J. de. (2025). Matemática no cotidiano: Simplificando a prática da matemática financeira no financiamento de imóveis. INTERFERENCE: A JOURNAL OF AUDIO CULTURE, 11(2), 8469–8487. https://doi.org/10.36557/2009-3578.2025v11n2p8469-8487

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Section

Original Article