FBA Fee Calculator

This gem provides most of the information provided by Amazon's FBA Profitability Calculator

Inspired by hamptus

Installation

Add this line to your application's Gemfile:

gem 'fba_fee_calculator'

And then execute:

$ bundle

Or install it yourself as:

$ gem install fba_fee_calculator

Usage

results = FbaFeeCalculator.calculate(
  price: 29.99,
  category: "Outdoors",
  weight: 1.3, # lbs
  dimensions: [4.3, 5.7, 8.3] # inches
)

results.size_category             # => "Standard"
results.size_tier                 # => "LRG_STND"
results.revenue_subtotal          # => 29.99
results.amazon_referral_fee       # => 4.50
results.variable_closing_fee      # => 0.00
results.order_handling            # => 1.00
results.pick_and_pack             # => 1.06
results.weight_handling           # => 1.95
results.monthly_storage           # => 0.06
results.fulfillment_cost_subtotal # => 4.07
results.cost_subtotal             # => -8.57
results.margin_impact             # => 21.42

Development

After checking out the repo, run bin/setup to install dependencies. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/sellerated/fba_fee_calculator.