c++ program for inflation rate of two numbers

Sure! Here is a C++ program for calculating the inflation rate of two numbers, along with explanations for each step:

#include <iostream>
using namespace std;

int main() {
    float year1, year2, inflationRate;

    // Input the values for year 1 and year 2
    cout << "Enter the value for year 1: ";
    cin >> year1;
    cout << "Enter the value for year 2: ";
    cin >> year2;

    // Calculate the inflation rate
    inflationRate = ((year2 - year1) / year1) * 100;

    // Output the inflation rate
    cout << "The inflation rate is: " << inflationRate << "%" << endl;

    return 0;
}

Explanation:

• We start by including the necessary header file iostream which allows us to perform input and output operations in C++.

• The using namespace std; statement is used to avoid having to write std:: before certain standard library functions.

• In the main() function, we declare three variables: year1, year2, and inflationRate. These variables will be used to store the values for year 1, year 2, and the calculated inflation rate, respectively.

• We prompt the user to enter the value for year 1 using the cout stream and accept the input using the cin stream. The value entered by the user is stored in the year1 variable. Similarly, we prompt the user for the value of year 2 and store it in the year2 variable.

• The inflation rate is calculated using the formula: (year2 - year1) / year1 * 100. This formula calculates the difference between year 2 and year 1, divides it by year 1, and then multiplies the result by 100 to get the percentage value.

• Finally, we output the calculated inflation rate to the console using the cout stream. The endl manipulator is used to insert a newline character after the output.

• The return 0; statement is used to indicate that the program has executed successfully.

I hope this helps! Let me know if you have any further questions.