Calculate Gross Profit W/O Sell?

Question

Trying to make myself a small project for work that will calculate gross profit without needing a sell price. Can anyone explain why this is getting marked down? we all needed help at one point.. I currently have 4 text boxes, Cost, Sell, Gross Profit Margin, Markup How i normally do it it excel is `=Cost/(1-Gp Markup)` and this would return $14.99 sell @ $12.74 cost for example @ 15% My code is below any help would be appreciated :) private void button2_Click(object sender, EventArgs e) { double cost = Convert.ToDouble(costTextBox.Text); double grossmargin = Convert.ToDouble(grossmarginTextBox.Text); double grossSellFinal = cost + (cost * grossmargin)/100; // This returns $14.65 which is a mark up not gross profit sellTextBox.Text = grossSellFinal.ToString(); } I have also tried this private void button2_Click(object sender, EventArgs e) { double cost = Convert.ToDouble(costTextBox.Text); double grossmargin = Convert.ToDouble(grossmarginTextBox.Text); double grossSellFinal = cost / (1 - grossmargin); //This returns a sell of -0.91 sellTextBox.Text = grossSellFinal.ToString(); } https://www.calculatorsoup.com/calculators/financial/margin-calculator.php?cost=12.74&revenue=14.99&action=solve

Answer 1

#include <iostream>

#include <iomanip> // For setting decimal precision

using namespace std;

int main() {

double cost, grossMargin, grossSellFinal;

cout << "Enter Cost: ";

cin >> cost;

cout << "Enter Gross Margin (%): ";

cin >> grossMargin;

// Convert percentage to fraction

grossMargin = grossMargin / 100;

// Calculate Sell Price

grossSellFinal = cost / (1 - grossMargin);

// Set precision to 2 decimal places and display the result

cout << fixed << setprecision(2);

cout << "Sell Price: $" << grossSellFinal << endl;

return 0;

}