C Program to Perform Profit and Loss Operation

Source Code:

// c program to perform profit and loss operation

#include <stdio.h>
// funtion body to display all profit and loss basic definations

void dispDef(){
    printf("INTRO: Profit and Loss formula is used in mathematics to determine the price of a commodity in the market and understand how profitable a business is. Every product has a cost price and selling price. Based on the values of these prices, we can calculate the profit gained or the loss incurred for a particular product.");
    printf("\n\nCOST PRICE(CP): The amount paid for a product or commodity to purchase it is called a cost price. Also, denoted as CP.\n\tThis cost price is further classified into two different categories:\n\t\t1)Fixed Cost: The fixed cost is constant, it does not vary under any circumstances \n\t\t2)Variable Cost: It could vary depending as per the number of units");
    printf("\n\nSELLING PRICE(SP): The amount for which the product is sold is called Selling Price. It is usually denoted as SP. Also, sometimes called a sale price.");
    printf("\n\nPROFIT(P): The amount gained by selling a product with more than its cost price.");
    printf("\n\nLOSS(L): The amount the seller incurs after selling the product less than its cost price, is mentioned as a loss.");
}
//fuction body to display formula of profit and loss

void dispFor(){
    printf("\n**Profit & Loss Formulas**");
    printf("\n1: Profit or Gain = Selling price – Cost Price\n2: Loss = Cost Price – Selling Price\n3: Profit percentage = (Profit /Cost Price) x 100\n4: Loss percentage = (Loss / Cost price) x 100");
}
// function body to calculate profit and loss

void calPL(){
    //variable declation

    float p, l, sp, cp;
    //enter selling price

    printf("Enter selleing price:");
    scanf("%f",&sp);
    //enter cost price

    printf("Enter cost price:");
    scanf("%f",&cp);
    //case of profit

    if(sp>cp){
        p = sp - cp;
        printf("Profit is:%f",p);
    }
    //case of loss

    else if(cp>sp){
        l = cp - sp;
        printf("Loss is:%f",l);
    }
    //case of no profit and no loss

    else{
        printf("No Profit & No Loss.");
    }
   
}
//funtion body to calculate profit percent

void calProfitPercent(){
    //declation of variable

    float pPer, p, cp;   
    //enter cost price

    printf("Enter cost price:");
    scanf("%f",&cp);
    //enter profit

    printf("Enter profit:");
    scanf("%f",&p);
    //calculating profit percentage

    pPer = (p/cp)*100;
    //printing profit percentage

    printf("Profit Percentage is:%f",pPer);
}
//loss pecentage calculation funtion body

void calLossPercent(){
    //variables diclaration

    float l, lPer, cp;
    //enter cost price

    printf("Enter cost price:");
    scanf("%f",&cp);
    //enter loss

    printf("Enter your loss:");
    scanf("%f",&l);
    //calculating loss percentage

    lPer = (l/cp)*100;
    //printing loss percentage

    printf("Loss Percentage is:%f",lPer);
}
// operation funtion body

void operation(){
    //declration of variables

    int ch;
    //statement to show the operations

    printf("\n1:Display all Definations\n2:Display all formula \n3:Calculate profit or gain & loss \n4:calculate profit percentage\n5:calulate loss percentage");
    //statements to enter users choice

    printf("\nEnter your choice:");
    scanf("%d",&ch);
   
    //switch case to perform operation choosen by user

    switch (ch){
        //case for calling display defination function

        case 1:
        dispDef();
        break;
       
        //case for calling display formula function

        case 2:
        dispFor();
        break;
       
        //case for calling profit and loss calculation funtion

        case 3:
        calPL();
        break;
       
        //case for calling profit percent calculation funtion

        case 4:
        calProfitPercent();
        break;
       
        //case for calling loss percent calculation funtion

        case 5:
        calLossPercent();
break;
       
        // default switch funtion

        default:
        printf("\nEnter correct choice from (1-5):");
    }
}
int main() {
   
    //variable declaration

    int n;
    x:
    // calling profit and loss operation funtion

    operation();
   
    //ask for performing operation again

    printf("\nDo you want to perform again for yes enter 1 or for no enter 0:");
    scanf("%d",&n);
   
    //if user want to perform again

    if(n==1){
        goto x;
    }
   
    //if user not want to perform gain

    else{
        printf("\nThanks for choosing us........");
    }
    return 0;
}

Input & Output:

1:Display all Definitions
2:Display all formula 
3:Calculate profit or gain & loss 
4:calculate profit percentage
5:calulate loss percentage
Enter your choice:2
**Profit & Loss Formulas**
1: Profit or Gain = Selling price – Cost Price
2: Loss = Cost Price – Selling Price
3: Profit percentage = (Profit /Cost Price) x 100
4: Loss percentage = (Loss / Cost price) x 100
Do you want to perform again for yes enter 1 or for no enter 0:1
1:Display all Definitions
2:Display all formula 
3:Calculate profit or gain & loss 
4:calculate profit percentage
5:calulate loss percentage
Enter your choice:3
Enter selling price:1000
Enter cost price:500
Profit is:500.000000
Do you want to perform again for yes enter 1 or for no enter 0:0
Thanks for choosing us........