C++ Program not reading formulas - c++

Question

My program I have been working on is supposed to output the following:
* The number of gallons of paint required
* The hours of labor required
* The cost of the paint
* The labor charges
* The total cost of the paint job
However, it displays 0 in every field.. What have I done wrong now?
Your help would be greatly appreciated.
Here is my code:
//Headers
#include <iostream>
#include <fstream>
#include <cmath>
#include <cstdlib>
#include <iomanip>
using namespace std;
void PaintJobEstimator(double gallonprice, double calc)
{
float numBucket=0;
float hours=0;
float bucketCost=0;
float laborCharges=0;
float totalCost=0;
//calculates number of buckets of paint (gallons) needed
numBucket=numBucket+calc*(1/115);
//calculates paint cost
bucketCost=bucketCost+gallonprice*numBucket;
//calculates labor hour
hours=hours+calc*(8/115);
//calculates labor charges
laborCharges=hours*18;
//calculates total cost
totalCost=totalCost+bucketCost+laborCharges;
//Console output
cout << "The number of Gallons of paint required:\t" << setprecision(2) << numBucket << endl;
cout << "The hours of labor required:\t" << setprecision(2) << hours << " hrs" << endl;
cout << "The labor charges:\t$" << setprecision(2) << laborCharges << endl;
cout << "The cost of the paint:\t$" << setprecision(2) << bucketCost << endl;
cout << "The total cost of the paint job:\t$" << setprecision(2) << totalCost << endl;
}
void main ()
{
int rooms;
double calc=0;
double wallspace;
double gallonprice;
cout << "=========================================================\n";
cout << "___________________Paint Job Estimator___________________\n";
cout << "_________________________________________________________\n";
cout << endl;
cout << "Enter the number of rooms: ";
cin >> rooms;
while (rooms<1) //validates rooms
{
cout << "Invalid entry, enter one or more rooms:\t";
cin >> rooms;
}
for (int roomNum=1;
roomNum<=rooms;
roomNum++)
{
cout << "Enter the wall space in square meters for room " << roomNum << ":\t" << endl;
cin >> wallspace;
while (wallspace < 0.01)//validates wallspace
{
cout << "Invalid entry, please re-enter the wall area for room " << roomNum << ":\t";
cin >> wallspace;
}
calc=calc+wallspace;
}//end loop
cout << "\nEnter price of the paint per gallon: ";
cin >> gallonprice;
if (gallonprice <10) //validates price per gallon
{
cout << "Invalid entry, Reenter price at a $10.00 minimum: ";
cin >> gallonprice;
}
PaintJobEstimator(gallonprice,wallspace);
system ("pause");
}
Here is a screenshot of the console:

Answer 1

You're multiplying by zero in some of the calculations. For example, in the following line of code:
numBucket=numBucket+calc*(1/115);
You put 1/115 in parenthesis, which evaluates to zero because of integer division. To achieve the desired effect, try:
numBucket = calc / 115.0f;