How would you make this code more efficient.

[iWillLearn]

Hello all,

This is my second day of learning programming. I wanted a real world problem that could be solved with some simple lines of code.

Scenario
Sometimes, I may have to price match a product with an online competitor. However, that competitor may not charge sales tax when I have to. Essentially, I want to make my final product price (after taxes) the same as the online competitor.

My solution:
If I was to do this without programming, I usually state it in an equation like:
x + (x*salesTax) = competitors price
I then input the two variables I know (comp price and sales tax)and solve for x. After thinking about that, this became my code:

  #include <iostream>
using namespace std;

int main()
{
	
	float productPrice;
	float taxDecimal;
	float competitorPrice;

	cout << "What would you like the final price to be? ";
	cin >> competitorPrice;
	cout << endl << "Enter the sales tax in decimal form: ";
	cin >> taxDecimal;
	taxDecimal++;

	productPrice = competitorPrice / taxDecimal;

	cout << "The product price is " << productPrice << "." << endl;

	return 0;
}

My question is, with this only being my second day of learning, how would you guys handle this differently? Right now, I don't know how to stop a decimal after two places (or round up). Is there anything you would do differently?

Thanks in advance,
iWillLearn

[48T7M4Gy]

Good start.
Try this for learning about decimal places etc.

http://stackoverflow.com/questions/5907031/printing-the-correct-number-of-decimal-points-with-cout

Look up the corresponding references at places like http://www.cplusplus.com/reference/ios/fixed/

[iWillLearn]

Thanks for the advice.