Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript Numbers Working with Numbers Doing Math

Posted by james presley
james presley
6,154 Points

Bummer: You need to declare a `profitPerUnit` variable and assign it a math operation. Help please!!

script.js 
const wholesalePrice = 5.45;
var retailPrice = 9.99;

const quantity = 47;

const salesTotal = retailPrice * quantity;

const profit = salesTotal - wholesalePrice * quantity;

const profitPerunit = profit / quantity;

2 Answers

Cameron Childres
Cameron Childres
11,817 Points
Cameron Childres
Cameron Childres
11,817 Points

Hi James,

Pay special attention to the variable name they want you to use and remember that capitalization matters -- profitPerunit is not the same as profitPerUnit. Everything else looks good to me :)

james presley
james presley
6,154 Points

Thanks, the little things are hard to keep up with. I capitalize the 'U' and it work. Thanks again.

Peter Vann
Peter Vann
36,425 Points
Peter Vann
Peter Vann
36,425 Points

Hi James!

Your main issue is that the u in unit was lowercase.

This passes all three tasks:

const wholesalePrice = 5.45;
const retailPrice = 9.99;
const quantity = 47;

const salesTotal = retailPrice * quantity;

const profit = salesTotal - wholesalePrice * quantity;

const profitPerUnit = profit / quantity; // Notice the uppercase U

(An easy typo to miss!?!)

I hope that helps.

Stay safe and happy coding!