InflationDb

InflationDb allows you to take a dollar amount from any year between 1635 and 2018 and find that amount adjusted for inflation in 2019.

Add this line to your application's Gemfile:

gem 'inflation_db'

And then execute:

$ bundle

Or install it yourself as:

$ gem install inflation_db

To calculate inflation on an amount from 1635-2018 to 2019, add this line to your code:

calculate_inflation(year_of_original_amount, that_original_amount)

and the method will return a float rounded to two decimal places.

To calculate inflation on an amount from 1635-2019 to any other year 1635, add this line to your code:

calculate_inflation(year_of_original_amount, that_original_amount, year_of_new_amount)

Examples:

• to calculate inflation on $10 from 1776 to 2019, you can write

calculate_inflation(1776, 10)

or

calculate_inflation(1776, 10, 2019)

• to calculate inflation on $10 from 1776 to 1980, you would write

calculate_inflation(1776, 10, 1980)

• to calculate what $100 in 2019 would have been worth in 1888, you would write

calculate_inflation(2019, 100, 1888)

Bug reports and pull requests are welcome on GitHub at https://github.com/dybushnell/inflation_db. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

I would like to thank Nick Stano for his guidance and assistance. I would also like to thank the Flatiron School, Tashawn Williams, Brianna Dixon, and Jeff Hwang.

The gem is available as open source under the terms of the MIT License.

Everyone interacting in the InflationDb project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.