Well I will read that again, as I do not recall seeing it broken down into guides and service.
Thank you
This is taken directly from my trips "Trip Tips and FAQs" page regarding Gratuities. I'm on the Central Europe trip.
Adventure Guide Gratuities
Gratuities for your Adventure Guides are not included. Based on the quality of service you have received, we suggest the following gratuity guidelines. Please note that this is for each member of your traveling party, per Adventure Guide, per day.
Per Adult/Child/Per Adventure Guide/Per Day—$7 - $10 USD
Example:
• For an 9-day adventure, the Adventure Guide gratuity per Guest, per Adventure Guide: $63 - $90 USD.
• A family of 4 for a 9-day adventure: $252 - $360 USD per Adventure Guide.
For two guides, this is a total of $504 - $720 USD.
The Adventure Guides gratuity can be paid in U.S dollars, local currency, travelers' checks or PayPal. Please check with your Adventure Guide if they accept PayPal.
All Other Gratuities
Gratuities have been taken care of on your behalf for all services included in the itinerary. There is no need for you to worry about tipping the bellmen, housekeepers, waiters, drivers and local experts.