How to increase guest count in a short period of time

[diazepamxx]

My park is very well decorated with 3 coasters, 2 thrill rides, a monorail, and 1 calm ride. All the ratings are above 90% with happiness being at 100 except for Prices which is at 75%.
What else must I do to increase the guest count from 423 to 550?

[AstroTron]

More rides equals more guests.

[Wai]

As in real life, there is a direct relationship between size and capacity. Add some more rides. These need not be expensive rides and you can also have duplicate rides. If you are going to use duplicates; look at the statistics for your current rides and add twin/s (with different name/s) for the most popular ride/s. (Duplicate thrill rides frequently turn out to be the cheapest way to quickly increase your visitor numbers.)

Also, frequency of seating, and to a lesser extent, toilets and shops, is really important. More rides encourages visitors in, ample seating and facilities keep them in. Keeping existing visitors as long as possible is important when aiming for high guest counts.