What is the most economical way from Pudong International Airport to Holiday Inn Downtown Shanghai or Grand Mercure Zhongya?

The cheapest way is subway. You can take local subway line 2 to People's Square, where transfer to line 1 to get off at SH Railway Station. Get out from exit 7 and you can walk to Holiday Inn Downtown or get out from exit 5 to wlak to Grand Mercure Zhongya. The whole journey costs CNY7 per person.

Thanks Sina!