To be completeled in C++: Quarterly Sales Statistics Write a program that lets t

Question

To be completeled in C++:

Quarterly Sales Statistics

Write a program that lets the user enter four quarterly sales figures for six divisions of a company. The figures should be stored in a two-dimensional array. Once the figures are entered, the program should display the following data for each quarter: • A list of the sales figures by division

• Each division's increase or decrease from the previous quarter (this will not be displayed for the first quarter.)

• The total sales for the quarter

• The company's increase or decrease from the previous quarter (this will not be displayed for the first quarter.)

• The average sales for all divisions that quarter

• The division with the highest sales for that quarter

The program should be modular, with functions that calculate the statistics above. Input Validation: Do not accept negative numbers for sales figures.

Explanation / Answer

/** C++ code Quarterly Sales Statistics **/
#include <iostream>

#include <iomanip>

using namespace std;

// Use global data for array sizes and array names

const int MAX_DIVISIONS = 6,

MAX_PERIODS = 4;

string divisionName[] = {"Pacific", "Mountain", "North Central",
"South Central", "Northeast", "Southeast" };

string periodName[] = {"First Quarter", "Second Quarter",

"Third Quarter", "Fourth Quarter" };

// Function prototypes shown below

void getInput( double sales[MAX_PERIODS][ MAX_DIVISIONS] );

void printSalesTable( double sales[MAX_PERIODS][ MAX_DIVISIONS],

double periodTotal[] );

void printPercentIncrease( double sales[MAX_PERIODS][ MAX_DIVISIONS],

double periodTotal[] );

void printTopDivision( double sales[MAX_PERIODS][ MAX_DIVISIONS]);

int main()

{

double sales[MAX_PERIODS][ MAX_DIVISIONS];

double periodTotal[MAX_PERIODS];

getInput( sales );

printSalesTable( sales, periodTotal );

printPercentIncrease( sales, periodTotal );

printTopDivision( sales );

return 0;

}

void getInput( double sales[MAX_PERIODS][ MAX_DIVISIONS] )

{

// Get input data in this routine. Prompt user for keyboard

// input, checking for negative sales figures

cout << "Enter sales data for each division for each reporting "

<< " period. ";

for ( int division = 0; division < MAX_DIVISIONS; division++ )

{

cout << "Enter sales data for the " << divisionName[division]

<< " Division ";

for ( int period = 0; period < MAX_PERIODS; period++ )

{

cout << periodName[period] << " Sales: ";

cin >> sales[period][division];

// Ensure that sales data are not negative

while ( sales[period][division] < 0 )

{

cout << " ERROR – you cannot have negative sales! ";

cout << "Renter " << periodName[period] << " Sales: ";

cin >> sales[period][division];

}

}

}

}

void printSalesTable( double sales[MAX_PERIODS][ MAX_DIVISIONS],

double periodTotal[] )

{

// Print sales table showing the sales for each division

// on one row. That row will show the sales for each

// period and the total for all periods.

// Start by printing title then print table header with

//period names "Total"

cout << setw(50) << "Sales for each division by reporting period "

<< setw(15) << left << "Division" << right;

for ( int period = 0; period < MAX_PERIODS; period++ )

{

cout << setw(16) << periodName[period];

}

cout << setw(16) << "Total Sales ";

// Print sales data for each division here. Compute

// total sales per division in variable total; grandTotal

// is variable to hold sales for all divisions. The

// array periodTotal[period] computes the total for all

// divisions in a given period.

double grandTotal = 0;

for ( int division = 0; division < MAX_DIVISIONS; division++ )

{

cout << setw(15) << left << divisionName[division] << right

<< fixed << setprecision(2);

double total = 0;

for ( int period = 0; period < MAX_PERIODS; period++ )

{

cout << sales[period][division];

total += sales[period][division];

periodTotal[period] += sales[period][division];

}

cout << setw(16) << total << endl;

grandTotal += total;

}

// Print totals and averages for all divisions

cout << " " << setw(15) << left << "Period Totals" << right;

for ( int period = 0; period < MAX_PERIODS; period++ )

{

cout <<setw(16) << periodTotal[period];

}

cout << setw(16) << grandTotal;

cout << " " << setw(15) << left << "Period Averages" << right;

for ( int period = 0; period < MAX_PERIODS; period++ )

{

cout <<setw(16) << periodTotal[period] / MAX_DIVISIONS;

}

cout << setw(16) << grandTotal / MAX_DIVISIONS;

}

void printPercentIncrease( double sales[MAX_PERIODS][ MAX_DIVISIONS],

double periodTotal[] )

{

// Print sales table showing the sales for each division

// on one row. That row will show the sales for each

// period and the total for all periods.

// Start by printing title then print table header with

//period names "Total"

cout << setw(50) << " Percent increase in sales for each division "

<< "by reporting period (excluding first) "

<< setw(15) << left << "Division" << right;

for ( int period = 1; period < MAX_PERIODS; period++ )

{

cout << setw(16) << periodName[period];

}

// Print percent increase for each division here. Compute

// total sales per division in variable total; grandTotal

// is variable to hold sales for all divisions. The

// array periodTotal[period] computes the total for all

// divisions in a given period.

for ( int division = 0; division < MAX_DIVISIONS; division++ )

{

cout << setw(15) << left << divisionName[division] << right

<< fixed << setprecision(2);

for ( int period = 1; period < MAX_PERIODS; period++ )

{

if ( sales[period-1][division] == 0 )

cout << setw(16) << "Not applicable";

else
cout << setw(15) << (sales[period][division] / sales[period-1][division]-1)*100 << "%";

}

}

// Print percent increase for all divisions

cout << " " << setw(15) << left << "Period Totals" << right;

for ( int period = 1; period < MAX_PERIODS; period++ )

{

if ( periodTotal[period] == 0 )

cout << setw(16) << "Not applicable";

else
cout << setw(15) << (periodTotal[period]/ periodTotal[period-1]-1)*100 << "%";

}
}

void printTopDivision( double sales[MAX_PERIODS][ MAX_DIVISIONS])

{

cout << " " << setw(50)<< "Top divisions by quarter ";

for ( int period = 0; period < MAX_PERIODS; period++ )

{

int maxIndex = 0;

for( int division = 1; division < MAX_DIVISIONS; division++ )

{

if ( sales[period][division] > sales[period][maxIndex] )

maxIndex = division;

}

cout << setw(20) << right << periodName[period] << ": "

<< divisionName[maxIndex] << endl << endl;

}

}

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