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JavaScript

decimal point in JavaScript

     

heretooplz

7:48 am on Mar 5, 2003 (gmt 0)

10+ Year Member



I'm new to JS and I figured out how to do an online order form but I donít know how to reduce the decimal point to 2 decimal points, or round up ($104.92). The sales tax in my state is .086 and after multiplying by the Subtotal I get some pretty long numbers on my tax total based on the item chosen. Can anyone help?

Subtotal: $1220

Tax: $104.91999999999999

Total: $1324.92

Key_Master

8:14 am on Mar 5, 2003 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



That's an oddball tax rate. ;)

var subtotal = 1220;
var taxrate = .086;
var tax = Math.round((subtotal * taxrate)*100)/100;
var total = subtotal + tax;

Hope this helps.

heretooplz

9:04 am on Mar 5, 2003 (gmt 0)

10+ Year Member



Thank you so much Key_Master. I"m new at JS but i'm starting to get the hang of it. I just stumbled onto webmasterworld tonight and i can see it's going to be very useful thanks to people like you :-)

Thanks again!

 

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