No. Unfortunately, in Russia there’s no law that would allow us to withdraw the gratuity from the business bank account and give it to the employees as tips, so cannot be possibly included in the bill and should be paid in cash. Besides, there’s no strickt rule on how much you tip. On average guides are tipped 10% and drivers are given 5% of the tour cost. It is better to tip your guide and driver separately. If you have tours in multiple cities/towns, you will need to tip the guides and drivers in each place separately.