Why am I getting answer as .445 and the expected answer is .45? (Kaleidoscope problem)

Question

Should i round off the answer? Or am i making any mistake in the code?

#include <iostream>
using namespace std;

int main() {
float num;
cin >> num;
if (num >1){
float cost = num * 5.00;
float disc = cost * 0.1;
float new_cost = cost - disc;
float tax = 0.07 * new_cost ;
float aft_tax = new_cost + tax;
cout << aft_tax;

}

if (num==1) {
float tax1 = 0.07 * 5.00;
float cost1 = tax1 + 5.00;
cout << cost1 ;
}
return 0;
}

Answer 1

I solved it in python and I had to round it.

Answer 2

Round it upto 2 decimal digits..
double type gives you more accurate values..

Answer 3

Hello

Answer 4

Try using double instead of float

Answer 5

Round (ans, 2) should solve that issue