When aircraft manufacturers like Boeing or Airbus sell planes, media report the value of the orders based on ‘list prices’ but those are made up numbers. No one pays list prices. Roughly speaking you can usually assume that airlines pay about half of list pricing.
Airbus has taken over marketing the C series and now they’re ‘Airbus A220s’. The first sale they’ve made is to JetBlue for 60 planes and to get that done they were reportedly willing to knock 72% off of list prices.