Also, we will collectively call the minimum and maximum points of a function the extrema of the function. So, relative extrema will refer to the relative minimums and maximums while absolute extrema refer to the absolute minimums and maximums.
Cost. More and more advisors are offering this type of service with a monthly retainer. Often they will charge $500-$2,000 upfront for the initial planning phase and then charge a monthly fee of $50 â $300 per month depending on the complexity of your financial needs.
Typical costs: 1  Hourly consultations with an event planner typically cost $40-$250 per hour. 2  Hiring a full-service event planner, meaning someone hired to manage an entire event, typically cost 15%-20% of the total event budget. 3  High-end event planning costs vary, especially in metropolitan areas like New York City. Event-planning consultations with Save the Date can cost $2,500 and total event coordination costs up to $35,000. Corporate events planned by New York's David Tutera can cost $250,000 for an event with 175 guests.