New Twiddle

components.pricing-editor.js

import Ember from 'ember';
export default Ember.Component.extend({
  totalCosts:Ember.computed('pricing',
    function(){
    var costs = {};
    costs["price"]=this.get('pricing').get('buy_price');
    costs["subscription"]=this.get('pricing').buy_subscription;
    costs["perRoom"]=this.get('pricing').buy_per_room;
    return costs;
  }),
  margins:Ember.computed('totalCosts', function(){
    var totals={};
    // totals['costs']=this.get('totalCosts');
    // margin={};
    // seller={};

    // for(var index in totals["costs"]){
    //   margin[index]=pricing.get(index)-totals['costs'][index]
    //   seller[index]=pricing.get(index+'_reseller')*margin[index]/100
    // }
    // totals['margin']=margin;
    // totals['seller']=seller;
    return totals;
  })
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  totalCosts:Ember.computed('',
    function(){
    var costs = {};
    costs["price"]=this.get('model').get('price');
    return costs;
    //return JSON.stringify(costs);
  })
});

models.pricing.js

import DS from 'ember-data';

export default DS.Model.extend({
  currency:DS.attr('string'),
  buy_price_cents:DS.attr('number'),
  price_cents:DS.attr('number'),
  buy_price:Ember.computed('buy_price_cents',{
    get(key){return (this.get('buy_price_cents')/100)},
    set(key,value){this.set('buy_price_cents', (value*100));return value}
  }),
  price:Ember.computed('price_cents',{
    get(key){return (this.get('price_cents')/100)},
    set(key,value){this.set('price_cents', (value*100));return value}
  })
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  model(){
    return this.get('store').createRecord('pricing',{buy_price_cents: 20.0,price_cents: 20.0});
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{get totalCosts 'price'}}
{{pricing-editor pricing=model}}
<br>
<br>

templates.components.pricing-editor.hbs

{{input value= (get pricing buy_price) }}
{{get totalCosts 'price'}}

twiddle.json

{
  "version": "0.15.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "2.14.1",
    "ember-template-compiler": "2.14.1",
    "ember-testing": "2.14.1"
  },
  "addons": {
    "ember-data": "2.14.10"
  }
}