Nascimento Filho, F. L. do; Oliveira, S. R. da C. F. de. THE IMPACTS OF THE ICMS CALCULATION FOR COMPANIES OPTED BY SIMPLE NATIONAL IN THE CONDITION OF SUBSTITUTED TAXES ACTING IN FOOTWEAR RETAIL IN THE STATE OF CEARÁ. REASE 2021, 7 (1), 1-16. https://doi.org/10.51891/rease.v7i1.446.