• • • • • • • • 21,043,361. • 5,238,765. 2 Apportionment percentage. Divide total sates column (b) by total salescolumn la) and muffler), Iheresult by 100. Enter the result here and on Schedule R. Side 1. line I8a. See General Information H . . • 24.8951 % Part B Thute-FactorFonnula.commete t