How to get the total value of sales during a specific month by each department and in each stores ?

#include <iostream>
//defining the following global variables
#define NUM_DEPTS 2
#define NUM_STORES 2
#define NUM_MONTHS 12


using namespace std;

//Description: Creating a function to calculate and print the total value of sales
//during a specific month by each department and in each store.
//Pre-condition: We need two parameters array sale, and month. 
//Post-condition: After calling the function inside the main we get the total value of sales 

void  sales(float sale[][NUM_STORES][NUM_MONTHS],int Month);

//Description: Main function where program begins
int main(){
	int Month;
	//Creating three dimensional array of float-point type 
	float sale[NUM_DEPTS][NUM_STORES][NUM_MONTHS] =
	{ 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2,
	2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2,
	3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2,
	2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2,
	};

	system("pause");
	return 0;
}


void  sales(int sale[][NUM_STORES][NUM_MONTHS], int Month){

	int sum = 0;
	
	//creating Three for loop to get the total value of sale 
	for (int i = 0; i < NUM_DEPTS; i++){

		for (int j = 0; j < NUM_STORES; j++){

			for (int k = 0; k < NUM_MONTHS; k++){
				sale[i][j][k];

				cout << "The total sales value " << sale[i][j][k] << endl;


			}
		}
	}


}