Best way to add Price Rating to the view

I have a price model associated to a venue model.

The price table

create_table "prices", force: :cascade do |t|
  t.string   "price_range"
  t.datetime "created_at",  null: false
  t.datetime "updated_at",  null: false
end

The price_range column holds the strings:

Up to $20,00
$20.01 to $40.00
$40.01 to $60.00
$60.01 to $80.00
More than $80.00

I want to associate the strings with the price rating ($$$$$) and colored the dollar signal according to the price_range string.

What is the best approach to do that? (Add new column to table? Javascript / Jquery?)