Menentukan nilai akhir c++

Kembali lagi nih sama aku.kali ini kita akan bahas tentang pemograman komputer yaitu tentang c++ menentukan nilai akhir. berikut penjelasannya guys..
Berikut koding dan hasil running ya.


#include <iostream.h>
#include <conio.h>
main()
{

float absen,quiz,tugas,uts,uas,total;

cout<<"\n    MENENTUKAN NILAI AKHIR MAHASISWA \n\n";

cout<<"\nMasukan Nilai Kehadiran   = ";cin>>absen;

cout<<"Masukan Nilai Quiz               = ";cin>>quiz;

cout<<"Masukan Nilai Tugas             = ";cin>>tugas;

cout<<"Masukan Nilai UTS               = ";cin>>uts;

cout<<"Masukan Nilai UAS              = ";cin>>uas;

total=(absen*10)/14+(quiz*0.15)+(tugas*0.15)+(uts*0.25)+(uas*0.35);

cout<<"\nTotal Nilai = "<<total;

if(total>=90.68&&total<=100)

cout<<"\nGrade       = A";

 else if(total>=80.34&&total<=90.67)

                cout<<"\nGrade       = A-";

 else if(total>=70.01&&total<=80.33)

                cout<<"\nGrade       = B+";

 else if(total>=60.68&&total<=70.00)

                cout<<"\nGrade       = B";

 else if(total>=50.34&&total<=60.67)

                cout<<"\nGrade       = B-";

 else if(total>=40.01&&total<=50.33)

                cout<<"\nGrade       = C+";

 else if(total>=30.68&&total<=40.00)

                cout<<"\nGrade       = C";

 else if(total>=20.34&&total<=30-58)

                cout<<"\nGrade       = C-";

 else if(total>=10.01&&total<=30.57)

                cout<<"\nGrade       = D+";

else if(total>=0.68&&total<=10.00)

cout<<"\nGrade       = D";

 else if(total>=0.34&&total<=0.67)

                cout<<"\nGrade       = D-";

else if(total>=0.00&&total<=0.33)

 cout<<"\nGrade       = E";

getch();

}

Hasil running :