I started learning cpp again after a while. Can you help me and tell me what's wrong with these if commands?

Question

(The question will be in the comments)
#include <iostream>
using namespace std;
int labour; //total number of workers
int present; //workers that are present
int yes; //workers that voted yes
int present100;
int yes100;
int main() {

cout << "Enter the number of the workers " << endl;
cin >> labour;
cout << "Enter the workers that are present " << endl;
cin >> present;
cout << "Enter the number of workers that voted for strike " << endl;
cin >> yes;
present100 = (present / labour) * 100;
yes100 = (yes / present) * 100;
if (((present100+1) >= 50) && (yes100 >= 75)) {

cout << "Strike " << endl;
}
else {
cout << "No strike " << endl;
}
system("PAUSE");
return 0;

}

Answer 1

Division of two integer values will result in another integer value. If you expect a floating point value, at least one of the operands should be a floating point value itself, for example through casting:

present100 = ( static_cast< double >( present ) / labour ) * 100;

For greater precision, both "present100" and "yes100" should be floating point values, too.

Lastly, the condition
( present100 + 1 ) >= 50
checks if more than or equal to 49% of the workers are present, not if at least 50% + 1 of the workers attended the meeting.

Answer 2

The exercise I picked up to do a refresh says: "If a union of workers wants to strike they have to attend a meeting. In order for the strike to happen, 50% of workers + 1 have to be there and 75% of those who are present have to vote yes for the strike to happen. Write a code that takes the total number of workers, the number of workers that were present in the meeting and the number that voted yes and says if a strike will happen or not."

Answer 3

Shadow thanks a lot!