Hm.. I based that on this test

```ruby 
irb(main):005:0> money = "10.0 SEK"
=> "10.0 SEK"
irb(main):006:0> money.gsub(/[^0-9-]/, '').to_f
=> 100.0
money.gsub(/[^0-9.-]/, '').to_f
=> 10.0
```