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.
1 Premiums for individual coverage averaged $286 per month while premiums for family plans averaged $727 per month.  The average annual deductible for individual plans was $4,120 and the average deductible for family plans was $7,760.