Float formatting in C++

You need to include <iomanip> and provide namespace scope to setw and setprecision

#include <iomanip>
std::setw(2)
std::setprecision(5)

try:

cout.precision(5);
cout << "Total : " << setw(4)   << floor(total*100)/100 << endl;

or

 cout << "Total : " << setw(4)   << ceil(total*10)/10 << endl;

iostream provides precision function, but to use setw, you may need to include extra header file.