costs of replacing serpentine belt and transmission services on 2004 Toyota Camry

do i need to replace the serpentine belt on my 2004 toyota camry? current mileage is 81K

Asked by for the 2004 Toyota Camry
yes its due for serp belt approx 130.00 and trans service is approx 120.00
Thank you ! Wish I had check this out sooner, just paid $302 to the car shop where my family members have been using for all our car maintenance work. Oh well...