JavaScript calculator and basic HTML page

Hi -

I'm hoping for a simple calculator to be built based on the logic in an excel spreadsheet (attached)

Just look at the "100% calculated" section to see how it works... Both the Young/old sections are just examples and do the same function.

The form should have 5 inputs:

Marginal Cost

Current Price

Current Quantity

New Price

New Observed Quantity

Once the user enters these fields, there needs to be a calculate button, which on execute displays the output either beside or below (while keeping the inputs visible so they can be updated again).

Output fields are:

Optimal Price

Optimal Quantity


The page should be simple in design (all black) with nicely but designed grey/white input fields.

Font: Normal 1em/1.5 "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial.

I'm OK if the other fields in the excel exist (and are calculated but hidden) as I may use them as a follow up project.

Ideally, longer term I'd like the output to also show equation steps and perhaps a graph... but that is probably a bit more complex and not in current scope.

Evner: CSS, HMLT5, Javascript

Se mere: spreadsheet javascript, spreadsheet in javascript, spreadsheet in html, simple spreadsheet examples, input html 5, html to spreadsheet, html spreadsheet, html form to spreadsheet, html 5 button, html 5 and css project works, how to calculate css, how excel works, how can i design graph, calculator in javascript, calculated fields form, excel calculator, basic html project, javascript html calculator project, javascript spreadsheet, white page displays, javascript calculator project, simple calculator javascript, simple calculator design, html form excel spreadsheet, javascript hidden show

Om arbejdsgiveren:
( 45 bedømmelser ) Teneriffe, Australia

Projekt ID: #6028825

Tildelt til:


HI, i got 9+ years exp in website development and i can create your calculator fast and in best quality code

$30 USD på 1 dag
(33 bedømmelser)

10 freelancere byder i gennemsnit $46 på dette job


Hi I am ready to do this project.I have experience in html/html5/xhtml/css/css3/javascript/php/Bootstrap responsive frame work.i have lot of experience in responsive website.i will provide you 100% satisfaction with w Flere

$34 USD på 1 dag
(179 bedømmelser)

Hello Project Manager, I am John Ofagbe a professional software developer. I have read through your project description and gone through the attached excel file as well. I can get this done within a few hours. You'd b Flere

$50 USD in 0 dage
(34 bedømmelser)

Hello, I can do that with jQuery, will look and work awesome, but budget of $30 is too small. Thanks, Alex

$133 USD in 3 dage
(20 bedømmelser)

Hello Dear. I will provide you elegantly designed calculator which will be easy to operate with keyboard only as well as with mouse too. I have seen the excel file and I am sure I can provide you the best. I will provi Flere

$55 USD på 1 dag
(38 bedømmelser)

Hello, As well as 3+ years technical experience with PSD, HTML, HTML5, CSS3, ASP.NET, PHP, Word Press, SQL Server, My SQL and JQuery with parallax & Bootstrap Responsive. We will provide commented HTML, HTML5, CSS3 Flere

$39 USD på 1 dag
(45 bedømmelser)

Hello Sir/Mam, I have checked your requirements for this project and I am interested in your project. I believe that the experience I gained working on the past projects coupled with my current experience will help Flere

$33 USD in 2 dage
(12 bedømmelser)

Hi. I can build your JS calculator today (4:11 PM here). It will do the SAME as the Excel (I checked the file). Thanks!

$30 USD på 1 dag
(8 bedømmelser)

Hi, I have 6+ years of experience in Front End development (using HTML5, CSS3 and JavaScript) and also in EXCEL. I can certainly address your requirement. Can start immediately. Also please let me know, if thi Flere

$30 USD in 0 dage
(5 bedømmelser)

you don't worry about the java script, i have several experience in java script. look at my project leave management system [login to view URL] i am a wed designer and developer, look at my o Flere

$25 USD in 3 dage
(4 bedømmelser)