C++ Coding divide integer -

my code ran distributor need 80% number total cost , 80% of taken out, used 80/100 , got total collected multiply that, shows 0.

#include <iostream>  #include <string>  using namespace std;  int main() {     int adult_tickets;     int child_tickets;     const int adult_price = 6;     const int child_price = 3;      cout << "adult tickets sold: " << endl;     cin >> adult_tickets;     cout << "child_tickets sold: " << endl;     cin >> child_tickets;      double total_collected;     int total_tickets;     double average_amount;     const int amount_paid = (80/100);     double amount_paid_to_distributor;     double profit;      total_collected = (float)(adult_tickets * adult_price) + (child_tickets *   child_price);     total_tickets = (float)(child_tickets + adult_tickets);     average_amount = (float)total_collected / total_tickets;     amount_paid_to_distributor = (float)total_collected * amount_paid;     profit = (float)total_collected - amount_paid_to_distributor;      cout << "total collected $: " << total_collected << endl;      cout << "average amount collected per ticket $: " << average_amount << endl;     cout << "amount paid distributor $: " << amount_paid_to_distributor << endl;     cout << "profit $: " << profit << endl;     system("pause");     return 0; } 

const int amount_paid = (80/100); same const int amount_paid = 0; long type of variable integer value.

if want perform operations floating numbers, need use float or double.

try changing to:

const double amount_paid = 0.8; 

you have many other errors in code. example, somewhere use float, somewhere use double , cast float... not mix them up, if not sure required , work problem limitations - may cause errors , problems. example, here:

int adult_tickets; int child_tickets;  int total_tickets;  total_tickets = (float)(child_tickets + adult_tickets); 

here have 2 ints, sum them up, cast float , assign int?

i suggest replacing float double everywhere , double-check assignments, casting etc.

that's how code should if exclude code styling issues uppercase variables naming, possible combining of variable declarations, more precise , unambigious names variables etc.:

double total_collected; int total_tickets; double average_amount; const double amount_paid = 0.8; double amount_paid_to_distributor; double profit;  total_collected = adult_tickets * adult_price + child_tickets * child_price; total_tickets = child_tickets + adult_tickets; average_amount = total_collected / total_tickets; amount_paid_to_distributor = total_collected * amount_paid; profit = total_collected - amount_paid_to_distributor;  cout << "total collected $: " << total_collected << endl;  cout << "average amount collected per ticket $: " << average_amount << endl; cout << "amount paid distributor $: " << amount_paid_to_distributor << endl; cout << "profit $: " << profit << endl;