Anti Commission

A mathematical function to calculate the price including commission.

Installation

npm install anti-commission or bower install anti-commission

Usage

var antiCommission = require('anti-commission');
var value = antiCommission(price, rate, convergence);

Why should i use this function?

Payment gateways receive commission over the last amount. If there is a 10% commission rate; Gateway receives a $10 commission for the item you want to sell for $100... If you sell the product for $110 to prevent damage, this time you pay $11 commission. You will still lose $1... But if you take the number that anti-commission gives you, your net profit will be $100.

Example

Lets assume we have $100 product and %10 commission rate... If we set convergence number to 0.0005, we will earn $100 + ($0-$0.0005)

antiCommission(100, 0.1, 0.0005); //will give "111.1115"
//if we use "$111.1115" our net profit will be;
//111.1115 - 111.1115 * 0.1 = 100.00035 ($100 + $0.00035)

License

MIT license.