Help Set Analysis Expressions

[#1]

Hellow

I have this expressions the objetive is get a % of Acumalates sales / acumulates sales in a set off products

=RangeSum(Above(sum({$<[Comision - Año]={$(=max(Año))}>} [Comision - Ventas]),Rowno(Total,0))) / RangeSum(Above(sum({$<[Comision - Año]={$(=max(Año))}, [Comision - Division] = {'DIVISION I','DIVISION II','DIVISION III','DIVISION VII'}}>} [Comision - Ventas]),Rowno(Total,0)))

The result is well but I need to totalize this % in the line off totals

Thanks alot.