RetentionCalculator

gistfile1.js

function retentionCalculator(opts) {
    var opts = opts || {};
    this.init = function(opts) {
        this.price = opts.price || 300; //Product Price
        this.margin = opts.margin || 0.085; //Profit Margin
        this.cost = opts.cost || 0; //Retention Cost
        this.lifetime = opts.lifetime || 3; //Product Lifetime
        this.inflation = opts.inflation || 0.05; //Inflation Rate
        this.network = opts.network || 100; //Network Size
        this.influence = opts.influence || 0.01;  //Network Conversion Influence
        this.duration = opts.duration || 5;  //Customer Duration
    }
    this.annual_customer_revenue = function() {
        return parseFloat(((this.price - this.cost) / this.lifetime) * this.margin).toFixed(2);
    }
    this.lifetime_customer_revenue = function() {
        return parseFloat(this.annual_customer_revenue() * this.duration * (1 + this.inflation)).toFixed(2);
    }
    this.lifetime_customer_revenu = function() {
        return parseFloat(this.annual_customer_revenue() * this.duration * (1 + this.inflation)).toFixed(2);
    }
    this.annual_network_revenue = function() { 
      return parseFloat(this.annual_customer_revenue() * this.network * this.influence).toFixed(2);
    }
    this.lifetime_network_revenue = function() {
      return parseFloat(this.annual_network_revenue() * this.duration * (1 + this.inflation)).toFixed(2);  
    }
    this.init(opts);
    return this;
}

var dishwasher = {
    price: 500,
    margin: 0.1,
    cost: 100,
    lifetime: 5,
    duration: 10
}
    
var rc = retentionCalculator(dishwasher);
console.log(rc.annual_customer_revenue());
console.log(rc.lifetime_customer_revenue());
console.log(rc.annual_network_revenue());
console.log(rc.lifetime_network_revenue());