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JavaScript JavaScript Basics (Retired) Working With Numbers Doing Math

Posted by Besleaga Alexandru Marian
Besleaga Alexandru Marian
1,754 Points

Well it seams a error appears into my mathematical command.

I use the / symbol to divide and it say's that I'm not using the / divide symbol when actually I am using it. Please help.

script.js 
var wholesalePrice = 5.45;
var retailPrice = 9.99;
var quantity = 47;
var salesTotal = 9.99*47;
var profit = 9.99*47-5.45*47;
var profitPerUnit = 9.99 * 47 - 5.45* 47 / 47;
index.html 
<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>
stephen henderson
stephen henderson
Courses Plus Student 6,181 Points 
var wholesalePrice = 5.45;
var retailPrice = 9.99;
var quantity = 47;
var salesTotal = retailPrice * quantity;
var profit = (retailPrice - wholesalePrice) * quantity;
var profitPerUnit = profit / quantity;

I wrote it as this and it worked

1 Answer

William Tan
William Tan
5,148 Points
William Tan
William Tan
5,148 Points 
var wholesalePrice = 5.45;
var retailPrice = 9.99;
var quantity = 47;
var salesTotal = 9.99 * 47;
var profit = (9.99 * 47) - (5.45 * 47);
var profitPerUnit = ((9.99 * 47) - (5.45 * 47)) / 47;

JavaScript works will process your code line by line from top down and from within parentheses first. But using variables to execute these calculations will be much easier.

var wholesalePrice = 5.45;
var retailPrice = 9.99;
var quantity = 47;
var salesTotal = retailPrice * quantity;
var profit = (retailPrice - wholesalePrice) * quantity;
var profitPerUnit = profit / quantity;

stephen henderson above is right.

Besleaga Alexandru Marian
Besleaga Alexandru Marian
1,754 Points

Well thank you for your answer, I will take notice of it for my next lines for code.